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Sahoo P, Pathak NK, Scott Bohle D, Dodd EL, Tripathy U. Hematin anhydride (β-hematin): An analogue to malaria pigment hemozoin possesses nonlinearity. Spectrochim Acta A Mol Biomol Spectrosc 2024; 310:123902. [PMID: 38281463 DOI: 10.1016/j.saa.2024.123902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 12/08/2023] [Accepted: 01/15/2024] [Indexed: 01/30/2024]
Abstract
Hematin anhydride (β-hematin), the synthetic analogue of the malaria pigment, "hemozoin", is a heme dimer produced by reciprocal covalent bonds among carboxylic acid groups on the protoporphyrin-IX ring and the iron atom present in the two adjacent heme molecules. Hemozoin is a disposal product formed from the digestion of hemoglobin present in the red blood cells infected with hematophagous malaria parasites. Besides, as the parasites invade red blood cells, hemozoin crystals are eventually released into the bloodstream, where they accumulate over time in tissues. Severe malaria infection leads to significant dysfunction in vital organs such as the liver, spleen, and brain in part due to the autoimmune response to the excessive accumulation of hemozoin in these tissues. Also, the amount of these crystals in the vasculature correlates with disease progression. Thus, hemozoin is a unique indicator of infection used as a malaria biomarker and hence, used as a target for the development of antimalarial drugs. Hence, exploring various properties of hemozoin is extremely useful in the direction of diagnosis and cure. The present study focuses on finding one of the unknown properties of β-hematin in physiological conditions by using the Z-scan technique, which is simple, sensitive, and economical. It is observed that hemozoin possesses one of the unique material properties, i.e., nonlinearity with a detection limit of ∼ 15 µM. The self-defocusing action causes β-hematin to exhibit negative refractive nonlinearity. The observed data is analyzed with a thermal lensing model. We strongly believe that our simple and reliable approach to probing the nonlinearity of β-hematin will provide fresh opportunities for malaria diagnostics & cure in the near future.
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Affiliation(s)
- Priyadarshi Sahoo
- Department of Physics, Indian Institute of Technology (Indian School of Mines), Dhanbad 826004, Jharkhand, India
| | - Nitesh Kumar Pathak
- Department of Physics, Indian Institute of Technology (Indian School of Mines), Dhanbad 826004, Jharkhand, India
| | - D Scott Bohle
- Department of Chemistry, McGill University, Montreal H3A 0B8, Quebec, Canada
| | - Erin L Dodd
- Département de Chimie, Université du Québec à Montréal, 2101, rue Jeanne-Mance Montréal, H2X 2J6 Québec, Canada
| | - Umakanta Tripathy
- Department of Physics, Indian Institute of Technology (Indian School of Mines), Dhanbad 826004, Jharkhand, India.
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Shanu M, Acharyya JN, Kuriakose A, Banerjee D, Soma VR, Vijaya Prakash G. Ultrafast Dynamics, Optical Nonlinearities, and Chemical Sensing Application of Free-Standing Porous Silicon-Based Optical Microcavities. ACS Appl Mater Interfaces 2024; 16:16996-17006. [PMID: 38514247 DOI: 10.1021/acsami.4c00526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
The present work demonstrates the ultrafast carrier dynamics and third-order nonlinear optical properties of electrochemically fabricated free-standing porous silicon (FS-PSi)-based optical microcavities via femtosecond transient absorption spectroscopy (TAS) and single-beam Z-scan techniques, respectively. The TAS (pump: 400 nm, probe: 430-780 nm, ∼70 fs, 1 kHz) decay dynamics are dominated by the photoinduced absorption (PIA, lifetime range: 4.7-156 ps) as well as photoinduced bleaching (PIB, 4.3-324 ps) for the cavity mode (λc) and the band edges. A fascinating switching behavior from the PIB (-ve) to the PIA (+ve) has been observed in the cavity mode, which shows the potential in ultrafast switching applications. The third-order optical nonlinearities revealed an enhanced two-photon absorption coefficient (β) in the order of 10-10 mW-1 along with the nonlinear refractive index (n2) in the range of 10-17 m2 W-1. Furthermore, a real-time sensing application of such FS-PSi microcavities has been demonstrated for detecting organic solvents by simultaneously monitoring the kinetics in reflection and transmission mode.
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Affiliation(s)
- Mohd Shanu
- Nanophotonics Lab, Department of Physics, Indian Institute of Technology Delhi,Hauz Khas, New Delhi 110016, India
| | - Jitendra Nath Acharyya
- Nanophotonics Lab, Department of Physics, Indian Institute of Technology Delhi,Hauz Khas, New Delhi 110016, India
| | - Albin Kuriakose
- Nanophotonics Lab, Department of Physics, Indian Institute of Technology Delhi,Hauz Khas, New Delhi 110016, India
| | - Dipanjan Banerjee
- Advanced Centre of Research in High Energy Materials (ACRHEM), DRDO Industry Academia - Centre of Excellence (DIA-COE), University of Hyderabad, Hyderabad 500046, India
| | - Venugopal Rao Soma
- Advanced Centre of Research in High Energy Materials (ACRHEM), DRDO Industry Academia - Centre of Excellence (DIA-COE), University of Hyderabad, Hyderabad 500046, India
- School of Physics, University of Hyderabad, Hyderabad 500046, India
| | - G Vijaya Prakash
- Nanophotonics Lab, Department of Physics, Indian Institute of Technology Delhi,Hauz Khas, New Delhi 110016, India
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Binish B, Lokesh B, Veer Y, Peters S, Abith M, Girisun TCS, Rahulan KM. Silver molybdate: an excellent optical limiting material under nanoregime for photonic device application. Sci Rep 2024; 14:5642. [PMID: 38453953 PMCID: PMC10920747 DOI: 10.1038/s41598-024-53690-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 02/03/2024] [Indexed: 03/09/2024] Open
Abstract
There is a mounting demand for nonlinear optical materials with superior optical limiting performance which has a noticeable impact on protecting the delicate optical components from laser-induced damage. Transition metal molybdates have garnered attention in the nonlinear optics field due to their outstanding optical and luminescent properties, which give rise to widespread applications in next-generation optoelectronics devices. The structural confirmation of the as prepared silver molybdate nanoparticles were made by XRD and Raman spectroscopy analysis. The linear optical properties and the band gap of the synthesized material were studied using UV-Visible and photoluminescence spectroscopy. SEM analysis revealed the pebble like morphology of the silver molybdate nanostructures. The nonlinear responses of the samples were studied using open aperture z-scan approach with Nd:YAG pulsed laser (532 nm, 9 ns, 10 Hz). The sample exhibits reverse saturable absorption pattern attributed to the two photon absorption (2PA) mechanism. The obtained OL threshold value is in the order of 1012 which is suitable for fabricating optical limiters in nano second pulsed laser regime.
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Affiliation(s)
- B Binish
- Nanophotonics Research Laboratory, Department of Physics & Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, 603 203, India.
- Department of Physics, Baby John Memorial Government College, chavara, kollam, India.
| | - B Lokesh
- Nanophotonics Research Laboratory, Department of Physics & Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, 603 203, India
| | - Yukesh Veer
- Nanophotonics Research Laboratory, Department of Physics & Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, 603 203, India
| | - Silda Peters
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, 603 203, India
| | - M Abith
- Nanophotonics Laboratory, Department of Physics, Bharathidasan University, Tiruchirappalli, 620 024, India
| | - T C Sabari Girisun
- Nanophotonics Laboratory, Department of Physics, Bharathidasan University, Tiruchirappalli, 620 024, India
| | - K Mani Rahulan
- Nanophotonics Research Laboratory, Department of Physics & Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, 603 203, India.
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Gopalakrishnan A, Sidden C, Magudeeswaran S, Bangaru S, Ramasamy A, Kaliyappan K. Synthesis, crystal structure, spectroscopic and computational studies of NLO active 2-methylimdazolium 4-nitrobenzoic acid single crystal. Spectrochim Acta A Mol Biomol Spectrosc 2024; 310:123936. [PMID: 38277785 DOI: 10.1016/j.saa.2024.123936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 12/20/2023] [Accepted: 01/20/2024] [Indexed: 01/28/2024]
Abstract
In this report, we have presented the theoretical and experimental investigation of 2-Methylimdazolium 4-Nitrobenzoic Acid (2MI4NB) - an organic crystal. The good quality 2MI4NB single crystal was grown by slow evaporation technique. Both single and powder X-ray diffraction (XRD) analysis confirmed that the grown crystal structure is Triclinic with the P1 space group. The vibrational modes present in the chemical were validated through Fourier transform infrared (FT-IR) spectrum investigations. Density functional theory (DFT), a quantum chemical approach, has emerged as a potential or an effective tool for studying molecular structure and NLO properties and is being used frequently in applications involving NLO systems. HOMO-LUMO analysis and reactivity parameters were calculated. Molecular Electrostatic Potential (MEP), Natural Bond Orbital (NBO) analysis and first order hyper polarizability were studied by B3LYP theoretical level with 6-311++G(d,p) basic set. In addition, the Mulliken Atomic Charge was calculated with the same basic set. The thermal properties of the 2MI4NB crystal was analysed by TG-DTA studies. It shows that the two endothermic peaks were observed. The optical absorption spectrum shows that there is no absorption in the region of 430-1200 nm. The Z-scan analysis gives the third order NLO properties like refractive index and third-order NLO susceptibility of 2MI4NB crystals.
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Affiliation(s)
- Anbu Gopalakrishnan
- R&D Laboratory, Department of Physics, Sri Shanmugha College of Engineering and Technology (Autonomous), Sankari-637304, Tamilnadu, India.
| | - Chinnasami Sidden
- PG & Research Department of Physics, Government Arts College for Men, Krishnagiri 635001, Tamilnadu, India
| | - Sivanandam Magudeeswaran
- Department of Physics, Centre for Research and Development, KPR Institute of Engineering and Technology, Arasur 641407, Coimbatore, Tamilnadu, India
| | - Sathya Bangaru
- Department of Physics, Freshmen Engineering Department, RK College of Engineering, Kethanakonda 521456, Vijayawada, Andhra Pradesh, India
| | - Anandhakrishnan Ramasamy
- Department of Physics, SSN Research Centre, SSN College of Engineering, Kalavakkam 603110, Chennai, India
| | - Kumar Kaliyappan
- R&D Laboratory, Department of Physics, Sri Shanmugha College of Engineering and Technology (Autonomous), Sankari-637304, Tamilnadu, India
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Kousalya Devi V, Kousi F, Mujahid Alam M, Sambasivam S, Ramalingam G, Abith M, Sabari Girisun TC, Sudhahar S. Third-order NLO properties and optical limiting behavior of p-toluidinium 2,4-dichlorobenzoate organic single crystal. Spectrochim Acta A Mol Biomol Spectrosc 2024; 305:123527. [PMID: 37847934 DOI: 10.1016/j.saa.2023.123527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 08/31/2023] [Accepted: 10/11/2023] [Indexed: 10/19/2023]
Abstract
This research work focuses on the synthesis and characterization of p-toluidinium 2,4-dichlorobenzoate (PTDA), organic non-linear optical crystal grown at room temperature. Single crystal X-ray diffraction (SCXRD) analysis was used to analyze the lattice parameters under the centrosymmetric space group of P121/c1 with a monoclinic crystal system. The crystalline nature and phase identification of the sample was analyzed by powder X-ray diffraction (PXRD) analysis. FT-IR and 1H NMR were used to identify the functional groups and various vibrations present in the grown crystal. The cut-off wavelength was observed at 284 nm from the transmittance spectrum, and the optical bandgap value (4.06 eV) was also determined from UV-visible analysis. TG-DTA analysis was carried out to understand its thermal properties. The mechanical strength of the material plays an important role in fabricating devices. Open-aperture Z-scan analysis was taken in order to get its third-order nonlinearity using Nd: YAG nanopulsed laser. PTDA crystal exhibits reverse saturable absorption and shows two-photon absorption- induced optical limiting behavior. Theoretical calculations were done by using Gaussian 09 software with a basic set of B3LYP/6-311G++ (d, p) to provide optimized molecular geometry, Frontier Molecular Orbital (FMO), and NBO analysis.
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Affiliation(s)
- V Kousalya Devi
- Department of Physics, Alagappa University, Karaikudi 630 003, India
| | - F Kousi
- Department of Physics, Alagappa University, Karaikudi 630 003, India
| | - M Mujahid Alam
- Department of Chemistry, College of Science, King Khalid University, Abha 61413, Saudi Arabia
| | - S Sambasivam
- National Water and Energy Center, United Arab Emirates University, Al Ain 15551, UAE
| | - G Ramalingam
- Department of Nanoscience and Technology, Alagappa University, Karaikudi 630003, Tamil Nadu, India
| | - M Abith
- Nanophotonics Laboratory, Department of Physics, Bharathidasan University, Tiruchirappalli 620 024, India
| | - T C Sabari Girisun
- Nanophotonics Laboratory, Department of Physics, Bharathidasan University, Tiruchirappalli 620 024, India
| | - S Sudhahar
- Department of Physics, Alagappa University, Karaikudi 630 003, India.
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Al-Roumy AM, Al-Saymari FA, Sultan HA, Hassan QMA, Elias RS, Alsalim TA, Saeed BA, Emshary CA, Mahdi MA. Nonlinear Optical Properties and All Optical Switching of Curcumin Derivatives. J Fluoresc 2024; 34:283-303. [PMID: 37209224 DOI: 10.1007/s10895-023-03257-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 05/02/2023] [Indexed: 05/22/2023]
Abstract
In this work OR1(E1,6E) -1,7-bis (4-propyloxy phenyl) hepta-1,6-diene-3,5 dione compound is synthesized. The compound has been characterized via computational technique by studying the molecule's electronic structures through calculating its HOMO and LUMO energies, and its band gap energy (EHOMO-ELUMO). The nonlinear refractive index (NLRI) of the solution of OR1 compound in DMF solvent is determined using diffraction patterns (DPs) which resulted when a continuous wave laser beam of wavelength 473 nm traversed the compound solution in a glass cell of 1 mm thickness. By counting the number of rings under maximum beam input power, the NLRI of value 10- 6 cm2/W resulted. The NLRI is calculated once more via the Z-scan technique and a value of 0.25 × 10- 7 cm2/W is obtained. The vertical convection current in the OR1 compound solution appears to be responsible for the asymmetries noticed in the DPs. The temporal variation of each DP is noticed together with the evolution of DPs against beam input power. DPs are numerically simulated based on the Fresnel-Kirchhoff integral with good accord compared to the experimental findings. Dynamic and static all-optical switching in the OR1 compound using two laser beams (473 and 532 nm) is tested successfully.
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Affiliation(s)
- Alaa M Al-Roumy
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
| | - F A Al-Saymari
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
| | - H A Sultan
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
| | - Qusay M A Hassan
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq.
| | - Rita S Elias
- College of Pharmacy, University of Basrah, Basrah, 61001, Iraq
| | - Tahseen A Alsalim
- Department of Chemistry, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
| | - Bahjat A Saeed
- Department of Chemistry, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
| | - C A Emshary
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
| | - M A Mahdi
- Department of Physics, College of Science, University of Basrah, Basrah, 61001, Iraq
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Jeyaram S. Nonlinear Absorption Features of Acid Blue 129 Dye in Polar Solvents: Role of Solvents on Solute Molecule. J Fluoresc 2024; 34:313-320. [PMID: 37249677 DOI: 10.1007/s10895-023-03277-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 05/16/2023] [Indexed: 05/31/2023]
Abstract
This paper focuses the study of nonlinear absorption (NLA) features of anthraquinone dye namely, acid blue 129 with different polar solvents including ethanol, methanol, acetone, 1-proponal and DMSO. The acid blue 129 dye in polar solvents is characterized by UV-Visible absorption and fluorescence study. The NLA measurements of acid blue 129 dye is examined via open aperture (OA) Z-scan method employing at 650 nm wavelength. The OA Z-scan curve of the experimental dye exhibits both saturable absorption (SA) and reveres saturable absorption (RSA) signature, which results from negative and positive NLA coefficient (β). The order of ground and excited state absorption cross-section is measured to be 10-22 m2 and 10-18 m2, respectively and proved the existence of RSA in acid blue 129 dye. The order of NLA coefficient and imaginary component of the third-order nonlinear susceptibility of acid blue 129 dye in polar solvents is calculated to be 10-3 cm/W and 10-5 esu, respectively. The multi-parameter scale viz., Kamlet-Abboud-Taft is used to measure the influence of solvent parameters on solute molecule. The results from the experiments suggest that the acid blue 129 is a suitable candidate for nonlinear optical (NLO) applications.
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Affiliation(s)
- S Jeyaram
- Department of Physics, Takshashila University, Ongur (PO), Tindivanam (TK), Villupuram-604305, Tamilnadu, India.
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Vidya C, Ragavan I, Arunkumar A, Anbarasan PM, Shkir M. Synthesis, crystal structures, spectroscopy, and quantum chemical studies on the 4-dimethylaminopyridinium-2,4-dinitrophenolate: an organic NLO material for optoelectronics. J Mol Model 2023; 29:388. [PMID: 38017290 DOI: 10.1007/s00894-023-05785-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 11/07/2023] [Indexed: 11/30/2023]
Abstract
CONTEXT In this work, the 4-dimethylaminopyridinium-2,4-dinitrophenolate (4DMAP + 2,4DNP) by slow evaporation solution growth method has been presented. The Fourier transform infrared (FT-IR) (4000-400 cm-1) and FT-Raman (4000-50 cm-1) spectra were recorded for the grown crystal. METHODS The computational calculation has been carried out with density functional theory (DFT) in ground state with Gaussian program package. Optimized geometrical parameters (bond distances, bond angles, and dihedral angles) have been obtained and compared with X-ray crystallography data. The calculated fundamental vibrational frequencies from DFT/B3LYP with 6-311 + + G(d,p) level of theory were scaled so as to agree with the observed results, and the scaling factors were reported. RESULTS Experimental and computed ultraviolet-visible (UV-Vis) spectra in acetone and methanol solvents were found comparable to each other. Furthermore, the frontier molecular orbitals (FMOs) energies, molecular electrostatic potential (MEP), nonlinear optical (NLO), hirshfeld surface (HS), and global chemical descriptors of the molecule were also calculated. The thermal stability and the melting point of the title compound were analyzed by the thermogravimetric analysis/differential thermal analysis (TGA/DTA) techniques. The mechanical behavior of the organic single crystal was measured by Vickers micro-hardness method. The third-order nonlinear optical properties such as nonlinear refractive index (n2), nonlinear absorption coefficient (β), optical nonlinear susceptibility Reχ(3), and optical nonlinear susceptibility Imχ(3) were calculated by using the open and closed aperture Z-scan technique. CONCLUSION The theoretical and experimental NLO values clearly proposed that the nonlinearity of 4DMAP + 2,4DNP molecule could be helped as a potential candidate for optical limiting, frequency doubling, and optical switching applications.
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Affiliation(s)
- C Vidya
- Nano and Hybrid Materials Laboratory, Department of Physics, Periyar University, Salem, 636011, India
| | - I Ragavan
- Nano and Hybrid Materials Laboratory, Department of Physics, Periyar University, Salem, 636011, India
| | - A Arunkumar
- Nano and Hybrid Materials Laboratory, Department of Physics, Periyar University, Salem, 636011, India
| | - P M Anbarasan
- Nano and Hybrid Materials Laboratory, Department of Physics, Periyar University, Salem, 636011, India.
| | - Mohd Shkir
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia
- Department of Physics, Faculty of Science, King Khalid University, P.O. Box‑9004, Abha, 61413, Saudi Arabia
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Stavrou M, Chazapis N, Georgakilas V, Couris S. 2D Non-van der Waals Nanoplatelets of Hematene and Magnetene: Nonlinear Optical Response and Optical Limiting Performance from UV to NIR. Chemistry 2023; 29:e202301959. [PMID: 37589720 DOI: 10.1002/chem.202301959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 08/17/2023] [Accepted: 08/17/2023] [Indexed: 08/18/2023]
Abstract
Recently, the preparation of some hematene and magnetene ultrathin non van der Waals (non-vdW) 2D nanoplatelets was reported starting from hematite and magnetite natural iron ores. The present work reports on the determination and evaluation of the nonlinear optical response and the optical limiting (OL) action of these 2D nanoplatelets dispersed in water under ns laser excitation. The obtained results show that both hematene and magnetene exhibit strong nonlinear absorption and refraction, comparable and even larger than those of other van der Waals (vdW) 2D counterpart materials. In addition, due to their strong nonlinear absorption, both hematene and magnetene show exceptional OL performance from the UV to visible, attaining very low values of optical limiting onset (OLon ), comparable and even lower than that of vdW 2D nanomaterials, such as graphene, graphene oxide, other transition metal dichalcogenides like MoS2 , WS2 and MoSe2 , black phosphorous and antimonene. Moreover, hematene was found to exhibit more efficient OL action than magnetene for all the excitation wavelengths studied, attributed to more efficient ligand to metal charge transfer. The present findings open new possibilities for the potential use of these non-vdW 2D materials in photonics and optoelectronics, e. g., as optical limiters and optical switchers.
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Affiliation(s)
- Michalis Stavrou
- Department of Physics, University of Patras University Campus, 26504, Rion, Achaia, Greece
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology-Hellas (FORTH) Stadiou St, Platani, 26504, Patras, Greece
| | - Nikolaos Chazapis
- Department of Physics, University of Patras University Campus, 26504, Rion, Achaia, Greece
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology-Hellas (FORTH) Stadiou St, Platani, 26504, Patras, Greece
| | - Vasilios Georgakilas
- Department of Materials Science, University of Patras University Campus, 26504, Rion, Achaia, Greece
| | - Stelios Couris
- Department of Physics, University of Patras University Campus, 26504, Rion, Achaia, Greece
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology-Hellas (FORTH) Stadiou St, Platani, 26504, Patras, Greece
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Jabber WH, Hassan QMA, Al-Saymari FA. Determination of Linear, Nonlinear, and the Optical Limiting Properties of Sudan Brown RR in a Solid Film and Solution. J Fluoresc 2023; 33:2369-2380. [PMID: 37071229 DOI: 10.1007/s10895-023-03227-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 03/27/2023] [Indexed: 04/19/2023]
Abstract
The casting technique is employed to prepare the film from a mixture of sudan brown RR (SBRR) dye and poly methyl methacrylate (PMMA). The surface profile of this film is identified using a scanning probe microscope and image J software. The linear optical (LO) properties of the solid film were studied. The nonlinear optical (NLO) properties of SBRR/PMMA film and sudan brown (RR) solution in dimethylformamide (DMF) as a solvent are evaluated using two methods including diffraction ring patterns and Z-scan. The optical limiting (OLg) property for the SBRR/PMMA film and SBRR solution was extensively investigated. The values of nonlinear refractive index (NRI) and threshold limiting (TH) of the solid film and dye solution were compared.
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Affiliation(s)
- Watan H Jabber
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
| | - Qusay M A Hassan
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq.
| | - F A Al-Saymari
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
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Tuma FA, Ashoor MJ, Sultan HA, Al-Saymari FA, Hassan QMA, Alsalim TA, Emshary CA, Saeed BA. Curcumin Analogue Spectral, Nonlinear Optical Properties and All-optical Switching Using Visible, Low Power Cw Laser Beams. J Fluoresc 2023:10.1007/s10895-023-03475-x. [PMID: 37906361 DOI: 10.1007/s10895-023-03475-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 10/12/2023] [Indexed: 11/02/2023]
Abstract
In this study, we conducted the synthesis and diagnosis of compound denoted as 1A3, specifically, (2E,4E,9E,11E)-7-chloro-2,12-diphenyltrideca-2,4,9,11-tetraene-6,8-dione. The photoluminescent and UV-vis spectral properties of this compound are investigated. The compound is dissolved in both chloroform and DMF for analysis purposes. Compound 1A3's nonlinear optical (NLO) characteristics when dissolved in DMF, are extensively studied through a series of experiments including diffraction patterns (DPs) and Z-scan. The optical limiting (OL) property of the 1A3 compound is tested and a threshold value of 12.4 mW at the wavelength 473 nm is obtained. Additionally, we explored its potential for all-optical switching utilizing two low-power visible laser beams. Notably, we achieved a significant nonlinear refractive index (NLRI) reaching up to 5.921 x 10-11 m2/W. To analyze the obtained diffraction patterns, we employed the Fresnel-Kirchhoff integral equation and conducted meticulous simulations. The numerical outcomes showed satisfactory agreement with the experimental observations.
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Affiliation(s)
- Fadhil A Tuma
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
| | - M J Ashoor
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
| | - H A Sultan
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
| | - F A Al-Saymari
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
| | - Qusay M A Hassan
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq.
| | - Tahseen A Alsalim
- Department of Chemistry, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
| | - C A Emshary
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
| | - Bahjat A Saeed
- Department of Chemistry, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
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12
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P A, Joe IH, Narayana B, Sarojini B, Harshitha K, Monicka JC. Enhanced NLO response and switching self-focussing in benzodiazepine derivative with -NO 2 and -Br substitution. Heliyon 2023; 9:e20512. [PMID: 37800076 PMCID: PMC10550505 DOI: 10.1016/j.heliyon.2023.e20512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/19/2023] [Accepted: 09/27/2023] [Indexed: 10/07/2023] Open
Abstract
Optoelectronic and the cubic nonlinear optical properties of 4-(4-Bromophenyl)-2-(4-nitrophenyl)-2, 3-dihydro-1H-1, 5-benzodiazepine have been studied. Z-scan technique was used for the third-order nonlinear optical measurements namely, nonlinear absorption, nonlinear refraction, and optical power limiting behaviour employing an Nd: YAG laser of 532 nm wavelength having 5 ns Gaussian pulses. B3LYP/6-311 ++ G (d, p) level of theory was employed for structural optimization, vibrational wavenumber, frontier molecular orbitals, natural bond orbital and population analysis. The MOLVIB programme was used to perform unambiguous vibrational assignments based on potential energy distribution values acquired from normal coordinate analysis. B3LYP and CAM-B3LYP hybrid functions have been employed at the DFT level to calculate the theoretical second-order hyperpolarizability. The substitution of -NO2 and -Br in this benzodiazepine compound enhances the second-order hyperpolarizability (γ) to the order of 10-34 esu and, switching of self-defocussing to self-focussing phenomenon. The HOMO-LUMO and optical band gap analysis illustrates that polarizing nature of the molecule vary with substituents. The obtained results indicate that this compound has potential applications in optoelectronics and photonics.
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Affiliation(s)
- Aswathy P
- Department of Physics, University of Kerala, Kariavattom, Thiruvananthapuram- 695581, India
| | - I. Hubert Joe
- Department of Nanoscience and Nanotechnology, University of Kerala, Kariavattom, Thiruvananthapuram- 695581, India
| | - B. Narayana
- Department of Chemistry, Mangalore University, Mangalagangothri 574199, India
| | - B.K. Sarojini
- Department of Studies in Industrial Chemistry, Mangalore University, Mangalagangothri, 574199, India
| | - K.R. Harshitha
- Department of Studies in Industrial Chemistry, Mangalore University, Mangalagangothri, 574199, India
| | - J. Clemy Monicka
- Department of Physics, St. John's College of Arts and Science, M.S.University, Kanyakumari-629204, Tamil Nadu, India
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13
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Deepa S, Madhu S, Devasenan S, Murali G, Pancharatna PD, Maaza M, Kaviyarasu K, Jeyaram S. Extraction of Natural Pigment Curcumin from Curcuma Longa: Spectral, DFT, Third-order Nonlinear Optical and Optical Limiting Study. J Fluoresc 2023:10.1007/s10895-023-03421-x. [PMID: 37665510 DOI: 10.1007/s10895-023-03421-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 08/28/2023] [Indexed: 09/05/2023]
Abstract
Herein, we report the extraction of natural pigment curcumin from curcuma longa and their linear and third-order nonlinear optical (NLO) characteristics. The characterization techniques viz., UV-Visible absorption, FT-IR, Micro Raman and Gas Chromatography Mass Spectrum (GC-MS) are used to study the spectral characteristics of curcumin. Third-order NLO features of curcumin are studied using Z‒scan technique with a semiconductor diode laser working at 405 nm wavelength. The natural pigment exhibits negative nonlinear index of refraction resulting from self-defocusing and positive coefficient of absorption is the consequence of reverse saturable absorption (RSA). The order of nonlinear index of refraction (n2) and nonlinear coefficient of absorption (β) is measured to be 10-7 cm2/W and 10-2 cm/W, respectively. Third-order NLO susceptibility (χ(3)) and second-order hyperpolarizability (γ) of curcumin is measured to be 2.73 × 10‒7 esu and 1.67 × 10‒31 esu, respectively. A low optical limiting (OL) threshold of 0.71 mW is observed in the extracted pigment. The experimental results are supplemented by quantum mechanical calculations of the NLO parameters. The overall result finding is that curcumin extracted from curcuma longa has the potential to be novel optical candidates for photonics and optoelectronics applications.
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Affiliation(s)
- S Deepa
- Department of Chemistry, Takshashila University, Ongur (PO), Tindivanam, Villupuram ─ 604305, Tamilnadu, India
| | - S Madhu
- Department of Physics, Takshashila University, Ongur (PO), Tindivanam, Villupuram ─ 604305, Tamilnadu, India
| | - S Devasenan
- Department of Chemistry, Takshashila University, Ongur (PO), Tindivanam, Villupuram ─ 604305, Tamilnadu, India
| | - G Murali
- Scientific Officer, Nanotechnology Research Centre, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur-603203, Tamilnadu, India
| | - Pattath D Pancharatna
- Department of Chemistry, Takshashila University, Ongur (PO), Tindivanam, Villupuram ─ 604305, Tamilnadu, India
| | - M Maaza
- UNESCO-UNISA-iTLABS/NRF Africa Chair in Nano-Sciences & Nanotechnology, CGS, University of South Africa, Muckleeuk Ridge, Pretoria, 0001, South Africa
| | - K Kaviyarasu
- UNESCO-UNISA-iTLABS/NRF Africa Chair in Nano-Sciences & Nanotechnology, CGS, University of South Africa, Muckleeuk Ridge, Pretoria, 0001, South Africa
| | - S Jeyaram
- Department of Physics, Takshashila University, Ongur (PO), Tindivanam, Villupuram ─ 604305, Tamilnadu, India.
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14
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Al-Timimy KA, Sultan HA, Hassan QMA, Emshary CA, Abdullah AQ, Arebi EAR. The Preparation and Nonlinear Properties Study of a Mixture of Polyurethane and Neutral Red Dye Solution. J Fluoresc 2023; 33:1761-1776. [PMID: 36826731 DOI: 10.1007/s10895-023-03189-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 02/16/2023] [Indexed: 02/25/2023]
Abstract
A mixture of polyurethane (PU) and neutral red (NR) dye solution is prepared. The nonlinear optical properties of the mixture of PU with NR dye solution are studied using a 473 nm laser beam of continuous fashion. The nonlinear refraction index of prepared material is determined via diffraction patterns and Z-scan. The diffraction patterns are calculated based on the Fresnel-Kirchhoff integral. Optical limiting of the prepared material is tested. All-optical switching occur in the sample using two low power visible laser beams.
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Affiliation(s)
- Kh A Al-Timimy
- Department of Physics, College of Science, University of Basrah, Basrah, 61001, Iraq
| | - H A Sultan
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
| | - Qusay M A Hassan
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq.
| | - C A Emshary
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, 61001, Iraq
| | - Ali Qassim Abdullah
- Department of Physics, College of Science, University of Basrah, Basrah, 61001, Iraq
| | - Emad Abdul Reaz Arebi
- Department of Physics, College of Science, University of Basrah, Basrah, 61001, Iraq
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15
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Stavrou M, Chazapis N, Arapakis V, Georgakilas V, Couris S. Strong Ultrafast Saturable Absorption and Nonlinear Refraction of Some Non-van der Waals 2D Hematene and Magnetene Nanoplatelets for Ultrafast Photonic Applications. ACS Appl Mater Interfaces 2023. [PMID: 37436773 DOI: 10.1021/acsami.3c06955] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 07/13/2023]
Abstract
In the present work, some non-van der Waals (non-vdW) 2D materials, namely, hematene and magnetene nanoplatelets, were synthesized starting from hematite and magnetite ores, respectively, using a green synthesis method, and they were dispersed in water. Then, their ultrafast nonlinear optical (NLO) response was studied under 50 fs, 400 nm laser excitation. Both non-vdW 2D materials revealed strong saturable absorption with NLO absorption coefficient β, saturable intensity, and modulation depth of about -33.2 × 10-15 m/W, 320 GW/cm2, and 19%, respectively, for hematene, and about -21.4 × 10-15 m/W, 500 GW/cm2, and 17% for magnetene. These values are comparable to those of other vdW 2D materials, such as graphene, transition metal dichalcogenides (TMDs) like MoS2, WS2, and MoSe2, black phosphorus (BP), and some MXenes (Ti3C2Tx), recently reported as efficient saturable absorbers. In addition, both hematene and magnetene dispersions displayed strong Kerr type NLO refraction with nonlinear refractive index parameters γ' comparable and even larger than those of van der Waals 2D materials. In all cases, hematene was found exhibiting significantly larger optical nonlinearities than magnetene, most probably due to the formation of a more efficient charge transfer system. The results of the present work are strongly suggesting that hematene and magnetene can have applications in a wide range of photonic and optoelectronic applications.
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Affiliation(s)
- Michalis Stavrou
- Department of Physics, University of Patras, 26504 Patras, Greece
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology─Hellas (FORTH), P.O. Box 1414, Patras 26504, Greece
| | - Nikolaos Chazapis
- Department of Physics, University of Patras, 26504 Patras, Greece
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology─Hellas (FORTH), P.O. Box 1414, Patras 26504, Greece
| | - Vasileios Arapakis
- Department of Physics, University of Patras, 26504 Patras, Greece
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology─Hellas (FORTH), P.O. Box 1414, Patras 26504, Greece
| | | | - Stelios Couris
- Department of Physics, University of Patras, 26504 Patras, Greece
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology─Hellas (FORTH), P.O. Box 1414, Patras 26504, Greece
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16
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Wu Q, Ruan R, Li X, Zhao Y, Li Y, Fang Y, Chen Y, Wu Q, Song Y, Wu X. Investigation of Broadband Optical Nonlinear Absorption and Transient Dynamics in Orange IV Containing Azobenzene. Molecules 2023; 28:4692. [PMID: 37375247 DOI: 10.3390/molecules28124692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 05/28/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
Broadband reverse saturable absorption is systematically investigated via Z-scan, transient absorption spectrum (TAS). The excited state absorption and negative refraction of Orange IV are observed in the Z-scan experiment at 532 nm. Meanwhile, two-photon-induced excited state absorption and pure two-photon absorption are observed at 600 nm and 700 nm with the pulse width of 190 fs, respectively. An ultrafast broadband absorption in the visible wavelength region is observed via TAS. The different nonlinear absorption mechanisms at multiple wavelengths are discussed and interpreted from the results of TAS. In addition, the ultrafast dynamics of negative refraction in the excited state of Orange IV are investigated via a degenerate phase object pump-probe, from which the weak long-lived excited state is extracted. All studies indicate that Orange IV has the potential to be further optimized into a superior broadband reverse saturable absorption material and also has certain reference significance for the study of optical nonlinearity in organic molecules containing azobenzene groups.
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Affiliation(s)
- Quanhua Wu
- Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Rui Ruan
- Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Xingxing Li
- Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Yujie Zhao
- Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Yang Li
- Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Yu Fang
- Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Yongqiang Chen
- Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Quanying Wu
- Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Yinglin Song
- Department of Physics, Soochow University, Suzhou 215123, China
- Department of Physics, Harbin Institute of Technology, Harbin 150001, China
| | - Xingzhi Wu
- Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, China
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17
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Spassky D, Vasil’ev A, Krutyak N, Buzanov O, Morozov V, Belik A, Fedorov N, Martin P, Belsky A. Decay Kinetics of Gd 3Al 2Ga 3O 12:Ce 3+ Luminescence under Dense Laser Irradiation. Materials (Basel) 2023; 16:971. [PMID: 36769977 PMCID: PMC9917819 DOI: 10.3390/ma16030971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 01/09/2023] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Abstract
The decay kinetics of Gd3Al2Ga3O12:Ce3+ single crystal luminescence were studied under dense laser excitation. It was shown that the decay times as well as the intensity of Ce3+ luminescence depend on the excitation density. The observed effects were ascribed to the interaction between excitons as well as to the features of energy transfer from the excitons to Ce3+. The numerical simulation of the experimental results was performed for justification of the proposed model.
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Affiliation(s)
- Dmitry Spassky
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Leninskiye Gory 1-2, 119991 Moscow, Russia
- Institute of Physics, University of Tartu, W. Ostwald Str. 1, 50411 Tartu, Estonia
| | - Andrey Vasil’ev
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Leninskiye Gory 1-2, 119991 Moscow, Russia
| | - Nataliya Krutyak
- Institute of Physics, University of Tartu, W. Ostwald Str. 1, 50411 Tartu, Estonia
- Physics Department, Lomonosov Moscow State University, Leninskiye Gory 1-2, 119991 Moscow, Russia
| | - Oleg Buzanov
- Fomos-Materials, Buzheninova 16, 107023 Moscow, Russia
| | - Vladimir Morozov
- Department of Chemistry, Lomonosov Moscow State University, Leninskiye Gory 1-3, 119991 Moscow, Russia
| | - Alexei Belik
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, Namiki 1-1, Tsukuba 305-0044, Ibaraki, Japan
| | - Nikita Fedorov
- Centre Lasers Intenses et Applications, Université de Bordeaux—Centre National de la Recherche Scientifique—Commissariat à l’Énergie Nucléaire, 33405 Talence, France
| | - Patrick Martin
- Centre Lasers Intenses et Applications, Université de Bordeaux—Centre National de la Recherche Scientifique—Commissariat à l’Énergie Nucléaire, 33405 Talence, France
| | - Andrei Belsky
- Centre Lasers Intenses et Applications, Université de Bordeaux—Centre National de la Recherche Scientifique—Commissariat à l’Énergie Nucléaire, 33405 Talence, France
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18
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Liu X, Zhou W, Wang M, Wu X, Jia J, Xiao J, Yang J, Song Y. Enhanced Ultrafast Broadband Reverse Saturable Absorption in Twistacenes with Enlarged π-Conjugated Central Bridge. Molecules 2022; 27. [PMID: 36558191 DOI: 10.3390/molecules27249059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/13/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022]
Abstract
Optical nonlinearities of two all-carbon twistacenes, DPyA and DPyN, with the different π-conjugated central bridges were investigated. The nonlinear absorption properties of these compounds were measured using the femtosecond Z-scan with wavelengths between 650 and 900 nm. It has been found that the nonlinear absorption originated from two-photon absorption (TPA) and TPA-induced excited state absorption (ESA), wherein DPyA demonstrates higher performance than DPyN. The TPA cross section of DPyA (4300 GM) is nearly 4.3 times larger than that of DPyN at 650 nm. Moreover, the different central structures modulate the intensity of ESA at 532 nm, and DPyA exhibits an excellent ESA at 532 nm with multi-pulse excitation. Meanwhile, the result of data fitting and quantum chemistry calculation shows that the enhancement of nonlinear absorption in DPyA is due to the extended π- conjugated bridge and improved delocalization of π-electrons. These all-carbon twistacenes could yield potential applications in optical power limiting (OPL) technology.
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19
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Moreschini S, Gama F, Bregovic R, Gotchev A. CIVIT dataset: Integral microscopy with Fourier plane recording. Data Brief 2022; 46:108819. [PMID: 36591387 PMCID: PMC9801074 DOI: 10.1016/j.dib.2022.108819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 12/01/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022] Open
Abstract
This article describes a dataset of synthetic images representing biological scenery as captured by a Fourier Lightfield Microscope (FLMic). It includes 22,416 images related to eight scenes composed of 3D models of objects typical for biological samples, such as red blood cells and bacteria, and categorized into Cells and Filaments groups. For each scene, two types of image data structures are provided: 51 × 51 Elemental Images (EIs) representing Densely Sampled Light Fields (DSLF) and 201 images composing Z-Scans of the scenes. Auxiliary data also includes information about camera intrinsic and extrinsic calibration parameters, object descriptions, and MATLAB scripts for camera pose compensation. The images have been generated using Blender. The dataset can be used to develop and assess methods for volumetric reconstruction from Light Field (LF) images captured by a FLMic.
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Key Words
- Blender
- Cells
- DCR, Dynamic Cutting Region
- DSFL, Densely Sampled Light Field
- EI, Elemental Image
- FLMic, Fourier Lightfield Microscope
- FiMic, Fourier Integral Microscope
- Filaments
- Fourier lightfield microscopy
- GT, Ground Truth
- LF, Light Field
- Light field
- NA, Numerical Apperture
- RBC, Red Blood Cell
- RoI, Region of Interest
- Z-scan
- Z-stack
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Mohamed T, Farhan A, Ahmed H, Ashour M, Mamdouh S, Schuch R. Nonlinear Optical Properties of Zinc Oxide Nanoparticle Colloids Prepared by Pulsed Laser Ablation in Distilled Water. Nanomaterials (Basel) 2022; 12:4220. [PMID: 36500847 PMCID: PMC9737988 DOI: 10.3390/nano12234220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 11/24/2022] [Accepted: 11/25/2022] [Indexed: 06/17/2023]
Abstract
The nonlinear optical properties of zinc oxide nanoparticles (ZnONPs) in distilled water were measured using a femtosecond laser and the Z-scan technique. The ZnONPs colloids were created by the ablation of zinc bulk in distilled water with a 532 nm Nd: YAG laser. Transmission electron microscopy, an ultraviolet-visible spectrophotometer, and atomic absorption spectrophotometry were used to determine the size, shape, absorption spectra, and concentration of the ZnONPs colloids. The nonlinear absorption coefficient and nonlinear refractive index were measured at different excitation wavelengths and intensities. The nonlinear absorption coefficient of the ZnONPs colloids was found to be positive, caused by reverse saturable absorption, whereas the nonlinear refractive index was found to be negative due to self-defocusing in the ZnONPs. Both laser parameters, such as excitation wavelength and input intensity, and nanoparticle features, such as concentration and size, were found to influence the nonlinear optical properties of the ZnONPs.
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Affiliation(s)
- Tarek Mohamed
- Laser Institute for Research and Applications LIRA, Beni-Suef University, Beni-Suef 62511, Egypt
- Department of Engineering, Faculty of Advanced Technology and Multidiscipline, Universitas Airlangga, Surabaya 60115, Indonesia
| | - Ali Farhan
- Al Anbar Health Directorate, Ramadi 31001, Iraq
| | - Hanan Ahmed
- Laser Institute for Research and Applications LIRA, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Mohamed Ashour
- Laser Institute for Research and Applications LIRA, Beni-Suef University, Beni-Suef 62511, Egypt
- High Institute of Optics Technology HIOT, Sheraton Heliopolis, Cairo 11799, Egypt
| | - Samar Mamdouh
- Laser Institute for Research and Applications LIRA, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Reinhold Schuch
- Physics Department, Stockholm University, AlbaNova, 10691 Stockholm, Sweden
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Mohamed T, El-Motlak MH, Mamdouh S, Ashour M, Ahmed H, Qayyum H, Mahmoud A. Excitation Wavelength and Colloids Concentration-Dependent Nonlinear Optical Properties of Silver Nanoparticles Synthesized by Laser Ablation. Materials (Basel) 2022; 15:7348. [PMID: 36295412 PMCID: PMC9610074 DOI: 10.3390/ma15207348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/13/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
We reported experimental results from investigations that employed the Z-scan method to explore the dependence of silver nanoparticles' (AgNPs) nonlinear optical properties on the excitation wavelength, AgNP concentration, and size. Using a 532 nm Nd: YAG laser beam at 100 mJ/pulse for different ablation times, AgNPs were synthesized from a silver target immersed in distilled water. UV-Vis spectroscopy and an atomic absorption spectrometer are used to characterize the optical properties of laser-synthesized AgNPs as well as their concentrations. The AgNPs' size and shape are determined using a transmission electron microscope (TEM). The laser-synthesized AgNPs are spherical, with an average particle size of 12 to 13.2 nm. Whatever the ablation time, the AgNP colloids exhibit reversed saturable absorption and a negative nonlinear refractive index (n2). Both n2 and the nonlinear absorption coefficient (α3) increase as the AgNP concentration increases. As the excitation wavelength and average size of the AgNPs increase, n2 and α3 decrease.
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Affiliation(s)
- Tarek Mohamed
- Laser Institute for Research and Applications LIRA, Beni-Suef University, Beni-Suef 62511, Egypt
- Department of Engineering, Faculty of Advanced Technology and Multidiscipline, Universitas Airlangga, Gubeng 60115, Indonesia
| | - Majed H. El-Motlak
- Al Anbar Health Directorate, Training and Human Development Centre, Al-Anbar 31001, Iraq
| | - Samar Mamdouh
- Laser Institute for Research and Applications LIRA, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Mohamed Ashour
- Laser Institute for Research and Applications LIRA, Beni-Suef University, Beni-Suef 62511, Egypt
- High Institute of Optics Technology HIOT, Sheraton Heliopolis, Cairo 11799/5, Egypt
| | - Hanan Ahmed
- Laser Institute for Research and Applications LIRA, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Hamza Qayyum
- Department of Physics, COMSATS University Islamabad, Park Road, Islamabad 45550, Pakistan
| | - Alaa Mahmoud
- Laser Institute for Research and Applications LIRA, Beni-Suef University, Beni-Suef 62511, Egypt
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22
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Udayan S, Kuriakose AC, Mary P, Sherin DR, Manojkumar TK, Nampoori V, Thomas S. Experimental and theoretical investigation on the nonlinear optical properties of LDS 821 dye in different solvents and DNA. Spectrochim Acta A Mol Biomol Spectrosc 2022; 272:121011. [PMID: 35158136 DOI: 10.1016/j.saa.2022.121011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 01/28/2022] [Accepted: 02/04/2022] [Indexed: 06/14/2023]
Abstract
Linear and nonlinear optical properties of near-infrared laser grade dye LDS 821 in different solvents and Salmon Deoxyribonucleic acid (DNA) were studied using spectroscopic and Z-scan techniques. UV-Vis absorption spectrum of the dye shows a bathochromic shift with a decrease in the solvent polarity parameter, and in DNA, the dye exhibits a hypochromic shift. The fluorescence spectrum of the dye does not show any notable correlation with the solvent polarity parameter, but in DNA, the fluorescence intensity of the dye decreases with the incremental addition of DNA. Molecular docking studies reveal that the dye intercalates on the major grooves of DNA. Nonlinear optical properties of the dye in different solvents and phosphate buffer solution with varying DNA concentrations were studied using the Z-scan technique using a Q-switched Nd: YAG laser operating at fundamental and second harmonics. A closed and open aperture Z-scan of dye in different solvents was carried out to estimate the nonlinear refractive index, excited-state absorption cross-section, and two-photon absorption coefficient (TPA). The variation in nonlinear optical properties of the dye in different solvents was due to solvent-induced structural modifications. Theoretical investigation on nonlinear optical properties of the dye in different solvents was carried out using density function theory. The theoretical first and second-order hyperpolarizability was calculated using B3LYP functional. The predicated nonlinear optical parameters of the dye in different solvents does not show any direct correlation with solvent polarity. Nonlinear absorption of the dye in phosphate buffer solution (PBS) and DNA were estimated. The nonlinear absorption of the dye in PBS decreases with the addition of DNA. Molecular docking studies were carried out to determine the structural changes induced in dye due to the intercalation with DNA.
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Affiliation(s)
- Sony Udayan
- International School of Photonics, Cochin University of Science and Technology, Cochin, Kerala, India.
| | - Alina C Kuriakose
- International School of Photonics, Cochin University of Science and Technology, Cochin, Kerala, India
| | - Priya Mary
- International School of Photonics, Cochin University of Science and Technology, Cochin, Kerala, India
| | - D R Sherin
- Centre for Computational Modeling and Data Engineering, Indian Institute of Information Technology and Management- Thiruvananthapuram, Kerala, India
| | - T K Manojkumar
- Centre for Computational Modeling and Data Engineering, Indian Institute of Information Technology and Management- Thiruvananthapuram, Kerala, India
| | - Vpn Nampoori
- International School of Photonics, Cochin University of Science and Technology, Cochin, Kerala, India
| | - Sheenu Thomas
- International School of Photonics, Cochin University of Science and Technology, Cochin, Kerala, India
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Swain BC, Das AK, Pathak NK, Tripathy U. Z-scan analysis and theoretical studies of dopamine under physiological conditions. Spectrochim Acta A Mol Biomol Spectrosc 2022; 271:120890. [PMID: 35066443 DOI: 10.1016/j.saa.2022.120890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 01/09/2022] [Accepted: 01/10/2022] [Indexed: 06/14/2023]
Abstract
Dopamine (DA) is a widely researched catecholamine best known for its role in motor, motivation, addiction, and reward. Disruption in dopamine homeostasis and signaling within the central nervous system (CNS) can lead to disorders such as attention deficit hyperactivity disorder (ADHD), schizophrenia, Parkinson's disease, and obsessive-compulsive disorder. In the periphery, circulating DA is stored in blood platelets, and its disruption correlates with pathological conditions such as head and neck paragangliomas, Huntington's chorea, and schizophrenia. Various methods to sensitively and selectively detect dopamine have been reported, but sparse attempts have been made to exploit its intrinsic properties. Previously, we have harnessed dopamine's natural mid-ultraviolet auto-fluorescence to carry out its label-free imaging in live brain tissues. Recently, we used the closed-aperture (CA) Z-scan method to provide the first line of evidence on the existence of dopamine nonlinearity. Here, we utilized this simple, sensitive, and straightforward CA Z-scan technique and coupled this with theoretical simulations to further investigate the nonlinear photophysical properties of DA under physiological conditions. Our combined approach revealed that the nonlinear property of dopamine is governed by the thermo-optical effects, and the CA Z-scan profiles can be modulated by parameters such as phase-shift, orders of absorption, and time dependency. Simple and physiologically relevant systems, such as the platelets, are amenable to Z-scan analysis, thereby empowering us to scrutinize in the future if nonlinearity and its alterations, if any, have a direct bearing on DA homeostasis and associated diseases.
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Affiliation(s)
- Bikash Chandra Swain
- Department of Physics, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand 826004, India
| | - Anand Kant Das
- Physics Division, New York University Abu Dhabi, Saadiyat Island, 129188 Abu Dhabi, United Arab Emirates
| | - Nitesh Kumar Pathak
- Department of Physics, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand 826004, India
| | - Umakanta Tripathy
- Department of Physics, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand 826004, India.
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24
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Almuqrin AH, Gangareddy J, Hivrekar MM, Pramod AG, Sayyed MI, Keshavamurthy K, Fatima N, Jadhav KM. Nonlinear Optical Limiting and Radiation Shielding Characteristics of Sm 2O 3 Doped Cadmium Sodium Lithium Borate Glasses. Materials (Basel) 2022; 15:2330. [PMID: 35329784 DOI: 10.3390/ma15062330] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 03/07/2022] [Accepted: 03/12/2022] [Indexed: 02/01/2023]
Abstract
Strong nonlinear absorption (NLA), reduced optical limiting (OL) thresholds, and high radiation shielding parameters are required for the effective use of glasses in the laser radiation and nuclear radiation protecting materials. In view of this, the efficacy of Sm2O3 on the nonlinear optical (NLO) and OL properties were ascertained (at 532 nm) along with radiation shielding characteristics. The open and closed aperture Z-scan profiles revealed the presence of positive NLA and nonlinear refraction (NLR) phenomena respectively. OL measurements showed the existence of limiting behavior in the studied glasses. The NLA and NLR coefficients were improved while the OL thresholds were decreased as the doping of Sm2O3 elevated to a higher doping level. These improvements in NLA, NLR coefficients and OL efficiencies were attributed to the non-bridging oxygens and high polarizable Sm3+ ions. The NLA and OL results clearly suggest the high (5 mol %) Sm2O3 doped glass (Sm5CNLB) glass is beneficial to protect the delicate devices and human eye by suppressing the high energy laser light. The theoretical linear attenuation coefficients (LAC) values of the presented SmxCNLB glasses were obtained with the help of Phy-X software between 0.284 and 1.333 MeV. At 0.284 MeV, the maximum values occur and take values between 0.302 (for Sm0CNLB) and 0.409 cm−1 (for Sm5CNLB). We found that the LAC for the presented SmxCNLB glasses is a function of Sm2O3 content, where the LAC tends to increase, corresponding to the high probabilities of interaction, as the content of Sm2O3 changes from 0 to 5 mol %. The effective atomic number (Zeff) for the presented SmxCNLB glasses was examined between 0.284 and 1.333 MeV. As the amount of Sm2O3 is added, the Zeff increases, and this was observed at any energy.
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Gao L, Chen H, Kuklin AV, Wageh S, Al-Ghamdi AA, Ågren H, Zhang H. Optical Properties of Few-Layer Ti 3CN MXene: From Experimental Observations to Theoretical Calculations. ACS Nano 2022; 16:3059-3069. [PMID: 35048704 DOI: 10.1021/acsnano.1c10577] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Despite the emerging interest in research and development of Ti3CN MXene nanosheet (NS)-based optoelectronic devices, there is still a lack of in-depth studies of the underlying photophysical processes, like carrier relaxation dynamics and nonlinear photon absorption, operating in such devices, hindering their further and precise design. In this paper, we attempt to remedy the situation by fabricating few-layer Ti3CN NSs via combining selective etching and molecular intercalation and by investigating the carrier relaxation possesses and broadband nonlinear optical responses via transient absorption and Z-scan techniques. These results are complemented by first-principle theoretical analyses of the optical properties. Both saturable absorption and reverse saturable absorption phenomena are observed due to multiphoton absorption effects. The analysis of these results adds to the understanding of the basic photophysical processes, which is anticipated to be beneficial for the further design of MXene-based devices.
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Affiliation(s)
- Lingfeng Gao
- College of Material, Chemistry, and Chemical Engineering, Hangzhou Normal University, No. 2318 Yuhangtang Rd., Cangqian, Yuhang District, Hangzhou 311121, China
| | - Hualong Chen
- College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P.R. China
| | - Artem V Kuklin
- Department of Physics and Astronomy, Uppsala University, SE-75120 Uppsala, Sweden
- International Research Center of Spectroscopy and Quantum Chemistry (IRC SQC), Siberian Federal University, 79 Svobodny pr., Krasnoyarsk 660041, Russia
| | - Swelm Wageh
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Ahmed A Al-Ghamdi
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Hans Ågren
- Department of Physics and Astronomy, Uppsala University, SE-75120 Uppsala, Sweden
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China
| | - Han Zhang
- College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P.R. China
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Stavrou M, Stathis A, Papadakis I, Lyuleeva-Husemann A, Koudoumas E, Couris S. Silicon Nanosheets: An Emerging 2D Photonic Material with a Large Transient Nonlinear Optical Response beyond Graphene. Nanomaterials (Basel) 2021; 12:90. [PMID: 35010042 PMCID: PMC8746558 DOI: 10.3390/nano12010090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/24/2021] [Accepted: 12/26/2021] [Indexed: 11/16/2022]
Abstract
The present work reports on the transient nonlinear optical (NLO) responses of two different types of 2D silicon nanosheets (SiNSs), namely hydride-terminated silicon nanosheets (SiNS-H) and 1-dodecene-functionalized silicon nanosheets (SiNS-dodecene). The main motivation of this study was to extend the knowledge regarding the NLO properties of these Si-based materials, for which very few published studies exist so far. For that purpose, the NLO responses of SiNS-H and SiNS-dodecene were investigated experimentally in the nanosecond regime at 532 and 1064 nm using the Z-scan technique, while the obtained results were compared to those of certain recently studied graphene nanosheets. SiNS-dodecene was found to exhibit the largest third-order susceptibility χ(3) values at both excitation wavelengths, most probably ascribed to the presence of point defects, indicating the importance of chemical functionalization for the efficient enhancement and tailoring of the NLO properties of these emerging 2D Si-based materials. Most importantly, the results demonstrated that the present silicon nanosheets revealed comparable and even larger NLO responses than graphene nanosheets. Undoubtedly, SiNSs could be strong competitors of graphene for applications in 2D-material-based photonics and optoelectronics.
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Affiliation(s)
- Michalis Stavrou
- Department of Physics, University of Patras, 26504 Patras, Western Greece, Greece; (M.S.); (A.S.); (I.P.)
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology-Hellas (FORTH), 26504 Patras, Western Greece, Greece
| | - Aristeidis Stathis
- Department of Physics, University of Patras, 26504 Patras, Western Greece, Greece; (M.S.); (A.S.); (I.P.)
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology-Hellas (FORTH), 26504 Patras, Western Greece, Greece
| | - Ioannis Papadakis
- Department of Physics, University of Patras, 26504 Patras, Western Greece, Greece; (M.S.); (A.S.); (I.P.)
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology-Hellas (FORTH), 26504 Patras, Western Greece, Greece
| | | | - Emmanouel Koudoumas
- Center of Materials Technology and Photonics, School of Engineering, Hellenic Mediterranean University, 71410 Heraklion, Crete, Greece;
- Department of Electrical and Computer Engineering, School of Engineering, Hellenic Mediterranean University, 71410 Heraklion, Crete, Greece
| | - Stelios Couris
- Department of Physics, University of Patras, 26504 Patras, Western Greece, Greece; (M.S.); (A.S.); (I.P.)
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology-Hellas (FORTH), 26504 Patras, Western Greece, Greece
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Ghader A, Behruzi M, Majles Ara MH, Ghaznavi H, Abbasian Ardakani A. Nonlinear optical response of cancer cells following conventional and nano-technology based treatment strategies: Results of chemo-, thermo- and radiation therapies. Photodiagnosis Photodyn Ther 2021; 37:102686. [PMID: 34915185 DOI: 10.1016/j.pdpdt.2021.102686] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 11/30/2021] [Accepted: 12/10/2021] [Indexed: 11/23/2022]
Abstract
BACKGROUND Although traditional treatments are able to increase cancer survival rate, undesirable impact on off-target tissues are considered a limitation of these approaches. Nanotechnology-based treatments have been proposed as a possible option to enhance targeting., Further,current methods for evaluating cellular damage, are time consuming, highly dependent on the operator skills, and expensive. The aim of this study was to evaluate the capability of nonlinear optical response of cells to determine cellular damages during conventional and nano-technology based treatments. METHODS Three different cancer cell lines, CT26, KB, and MCF-7 were used in this study. The alginate hydrogel co-loaded with cisplatin and Au nanoparticle (ACA) nanocomplex and gold-coated iron oxide nanoparticle (Au@IONP) were considered for chemo- and chemo-photothermal therapies, and thermo-radiation therapy, respectively. The sign and value of nonlinear optical absorption coefficient and imaginary part of the third-order nonlinear susceptibility of cells were computed. MTT assay was utilized as a reference method. RESULTS The value of nonlinear optical indices increased with increasing cellular damage and cell death. The linear regression analysis indicated high correlation between nonlinear optical indices and MTT results, in all treatments. CONCLUSION The nonlinear optical indices are robust from confounding factors, namely treatment approach (traditional and nano-technology based), treatment modality (chemotherapy, thermotherapy, photothermal therapy, and radiation therapy), and cell types. Nonlinear optical properties of cells can be used as a rapid estimation method for cell damage, at the nanoscale level.
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Parra GG, Correa DS, Silveira-Alves E, Almeida LM, Souza MAR, De Boni L, Misoguti L, Mendonça CR, Zílio SC, Barbosa Neto NM, Borissevitch IE, Gonçalves PJ. Effects of meso-tetrakis (4-sulfonatophenyl) porphyrin (TPPS 4) aggregation on its spectral and kinetic characteristics and singlet oxygen production. Spectrochim Acta A Mol Biomol Spectrosc 2021; 261:120063. [PMID: 34153547 DOI: 10.1016/j.saa.2021.120063] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 06/07/2021] [Indexed: 06/13/2023]
Abstract
The present work reports the effects of meso-tetrakis (4-sulfonatophenyl) porphyrin (TPPS4) aggregation on its excited states absorption spectra, triplet states quenching by molecular oxygen and singlet oxygen production. Experimental techniques such as optical absorption, Z-scan with a white light continuum source and the Laser Flash Photolysis were used to fulfil the study. J-aggregates possess reverse saturable absorption in the 505-660 nm spectral range with a peak centered close to 540 nm. These facts together with their fast relaxation time suggest that they can be employed as material for ultrafast optical limiting and switching. Even though aggregation reduces the porphyrin excited-state lifetimes and quantum yields, it does not reduce the probability of the contact between the quencher and the excited aggregate. Aggregation does not change the contribution of energy transfer mechanisms to triplet state quenching by molecular oxygen. The production of singlet oxygen, the intense absorption in the phototherapeutic window and the high efficiency of conversion of light energy into heat, allow consider J-aggregates as a theranostic agent for photomedicine. It is proposed to use J-aggregates for diagnostics by photoacoustic images and in combination with a near-infrared photodynamic/photothermal dual mode therapy, thus improving synergistically the therapeutic response.
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Affiliation(s)
- Gustavo G Parra
- Departamento de Física, FFCLRP, Universidade de São Paulo, Av. Bandeirantes 3900, 14040-901 Ribeirão Preto, SP, Brazil
| | - Daniel S Correa
- EMBRAPA Instrumentação, Rua XV de Novembro, 1452, 13560-970 São Carlos, SP, Brazil
| | - Eli Silveira-Alves
- Instituto de Química, Universidade Federal de Goiás, 74001-970 Goiânia, GO, Brazil
| | - Luciane M Almeida
- Universidade Estadual de Goiás/UEG, BR-153 3105, Fazenda Barreiro do Meio, Campus Anápolis de Ciências Exatas e Tecnológicas, 75132-400 Anápolis, GO, Brazil
| | - Marcio A R Souza
- Instituto de Física, Universidade Federal de Goiás, 74001-970 Goiânia, GO, Brazil
| | - Leonardo De Boni
- Instituto de Física de São Carlos, Universidade de São Paulo, 13560-970 São Carlos, SP, Brazil
| | - Lino Misoguti
- Instituto de Física de São Carlos, Universidade de São Paulo, 13560-970 São Carlos, SP, Brazil
| | - Cleber R Mendonça
- Instituto de Física de São Carlos, Universidade de São Paulo, 13560-970 São Carlos, SP, Brazil
| | - Sérgio C Zílio
- Instituto de Física, Universidade Federal de Goiás, 74001-970 Goiânia, GO, Brazil; Instituto de Física de São Carlos, Universidade de São Paulo, 13560-970 São Carlos, SP, Brazil
| | - Newton M Barbosa Neto
- Faculdade de Física, Universidade Federal do Pará, Av. Augusto Correa, 01, Guamá, 66075-110 Belém, PA, Brazil
| | - Iouri E Borissevitch
- Departamento de Física, FFCLRP, Universidade de São Paulo, Av. Bandeirantes 3900, 14040-901 Ribeirão Preto, SP, Brazil; Instituto de Física, Universidade Federal de Goiás, 74001-970 Goiânia, GO, Brazil.
| | - Pablo J Gonçalves
- Instituto de Química, Universidade Federal de Goiás, 74001-970 Goiânia, GO, Brazil; Instituto de Física, Universidade Federal de Goiás, 74001-970 Goiânia, GO, Brazil.
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Antony MM, Suchand Sandeep CS, Murukeshan VM. Hyperspectral z-scan: Measurement of spectrally resolved nonlinear optical properties. Spectrochim Acta A Mol Biomol Spectrosc 2021; 261:120005. [PMID: 34087773 DOI: 10.1016/j.saa.2021.120005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 05/20/2021] [Accepted: 05/23/2021] [Indexed: 06/12/2023]
Abstract
Broadband hyperspectral z-scan using a supercontinuum light source is a convenient technique to obtain spectrally resolved nonlinear optical properties of the materials under investigation. Post-processing and segregation of the data obtained from the supercontinuum based hyperspectral z-scan measurement aids in determining the nonlinear optical properties with high spectral resolution. However, few data models exist to store and represent the large amount of information acquired from the hyperspectral z-scan measurement. In this paper, a 3D data model for representing the data obtained from broadband z-scan measurements and analysis is presented. This method would help in the quick characterization of spectrally resolved nonlinear optical properties of materials from a single z-scan measurement. The proposed model is used for obtaining the spectrally resolved nonlinear optical properties of rhodamine 6G.
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Affiliation(s)
- Maria Merin Antony
- Centre for Optical and Laser Engineering, School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - C S Suchand Sandeep
- Centre for Optical and Laser Engineering, School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.
| | - Vadakke Matham Murukeshan
- Centre for Optical and Laser Engineering, School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.
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Boudebs G. Numerical Simulation of the Whole Thermal Lensing Process with Z-Scan-Based Methods Using Gaussian Beams. Materials (Basel) 2021; 14:ma14195533. [PMID: 34639930 PMCID: PMC8509296 DOI: 10.3390/ma14195533] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/17/2021] [Accepted: 09/21/2021] [Indexed: 01/20/2023]
Abstract
A general study of the diffracted far field due to thermal lens heating using Gaussian beams is presented. The numerical simulation considers the whole system, including both the optical and the thermal parameters. It is shown that the existing simplified relations found in the literature and used up to now only give the order of magnitude of the thermo-optical coefficients. More accurate, simplified formulas are derived to measure the induced thermal phase shift when working with Z-scan-based methods. Temperature estimation in absorbing media turn out to be more reliable whether using time-resolved or steady-state techniques. The extension of the calculation to the image formation in a 4f system is also addressed.
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31
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Jiang J, Jia Y, Wu T, Gao Y. Transformation from Self-Focusing to Self-Defocusing of Silver Nanoparticles. Nanomaterials (Basel) 2021; 11:nano11102485. [PMID: 34684926 PMCID: PMC8541450 DOI: 10.3390/nano11102485] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/17/2021] [Accepted: 09/20/2021] [Indexed: 11/16/2022]
Abstract
The nonlinear refraction of silver nanoparticles (AgNPs) in n-hexane was studied by using the closed-aperture Z-scan technique with a 532 nm nanosecond laser. It was found that, the nonlinear refraction of AgNPs shows the coexistence and transformation from self-focusing to self-defocusing. Specifically, self-focusing occurs at low excitation intensity, self-defocusing occurs at high excitation intensity, and coexistence of self-focusing and self-defocusing occurs at relatively moderate excitation intensity. The experimental results were analysed and discussed in terms of third-order and fifth-order nonlinear refractive effect. Specifically, the self-focusing is caused by the positive third-order nonlinear refraction, the self-defocusing is induced by the negative fifth-order nonlinear refraction, and the transformation from the self-focusing to self-defocusing at medium excitation intensity is caused by the competition of third-order and fifth-order nonlinear refraction. Finally, the third-order refractive index and fifth-order refractive index were obtained.
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Affiliation(s)
- Jijuan Jiang
- College of Electronic Engineering, Heilongjiang University, Harbin 150080, China; (J.J.); (Y.J.); (T.W.)
- College of Communication and Electronic Engineering, Qiqihar University, Qiqihar 161000, China
| | - Yang Jia
- College of Electronic Engineering, Heilongjiang University, Harbin 150080, China; (J.J.); (Y.J.); (T.W.)
- College of Communication and Electronic Engineering, Qiqihar University, Qiqihar 161000, China
| | - Tong Wu
- College of Electronic Engineering, Heilongjiang University, Harbin 150080, China; (J.J.); (Y.J.); (T.W.)
| | - Yachen Gao
- College of Electronic Engineering, Heilongjiang University, Harbin 150080, China; (J.J.); (Y.J.); (T.W.)
- Correspondence:
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Jeyaram S, Naseer J, Punitha S. Effect of Solvent on Third-Order Nonlinear Optical Behavior of Reactive Blue 19 Dye. J Fluoresc 2021; 31:1895-1906. [PMID: 34532787 DOI: 10.1007/s10895-021-02808-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 08/27/2021] [Indexed: 11/25/2022]
Abstract
The present work focuses the study of effect of solvent on third-order nonlinear optical (NLO) properties of reactive blue 19 dye dissolved in various polar solvents, namely ethanol, DMF and DMSO, respectively. Fourier Transform Infrared Spectroscopy (FT-IR) was used to find the functional groups present in reactive blue 19 dye. Third-order NLO features of reactive blue 19 dye was examined by a low power continuous wave laser of 650 nm wavelength. Reactive blue 19 dye exhibit negative nonlinear index of refraction of the power of 10-7 cm2/W and the nonlinear coefficient of absorption of the order of 10-3 cm/W. Both positive and negative nonlinear absorption coefficient of reactive blue 19 dye in different polar solvents is due to the characteristic behavior of saturable and reverse saturable absorption. Third-order NLO susceptibility of reactive blue 19 dye in polar solvents was determined to be the power of 10-6 esu. The experimental results reveal that the dye sample reactive blue 19 is a potential material for nonlinear optical applications.
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Affiliation(s)
- S Jeyaram
- Department of Physics, School of Engineering and Technology, Surya Group of Institutions, Vikravandi, Villupuram, Tamilnadu, 605652, India.
| | - J Naseer
- Department of Physics, St. Michael College of Engineering and Technology, Kalayarkoil, Sivaganga, Tamilnadu, 630551, India
| | - S Punitha
- Department of Electrical and Electronics Engineering, Sri Manakula Vinayagar Engineering College, Madagadipet, Puducherry, 605107, India
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Srivishnu KS, Banerjee D, Ramnagar RA, Rathod J, Giribabu L, Soma VR. Optical, Electrochemical, Third-Order Nonlinear Optical Investigations of 3,4,5-Trimethoxy Phenyl Substituted Non-Aqueous Phthalocyanines. Front Chem 2021; 9:713939. [PMID: 34568277 PMCID: PMC8458761 DOI: 10.3389/fchem.2021.713939] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 07/29/2021] [Indexed: 11/13/2022] Open
Abstract
A new series of non-aqueous phthalocyanines having 3,4,5-trimethoxy phenyl group at peripheral positions in which the central cavity possessing Cu(II), Zn(II), and without metals has been synthesized, and its absorption, fluorescence (steady-state and excited state lifetimes), electrochemical, and third-order nonlinear optical (NLO) properties were evaluated. Absorption studies data suggest that all three phthalocyanines obey Beer-Lambert's law, and the redox properties indicate that both oxidation and reduction reactions are macrocyclic centered. The singlet quantum yields were measured in different solvents and were found to be in the range of 0.2-0.5 in the case of free-base, whereas it was in the range of 0.1-0.5 in zinc derivative, while the time-resolved fluorescence data revealed lifetimes of typically a few ns. The third-order NLO properties were investigated using the Z-scan technique with kilohertz (for retrieving true electronic nonlinearities) and megahertz repetition rate femtosecond pulses at 800 nm. Intensity-dependent Z-scan studies revealed robust NLO coefficients for solutions and thin films (two-photon absorption cross-sections of 9,300-57,000 GM) of these molecules suggesting a strong potential for optical switching, imaging, and optical limiting applications.
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Affiliation(s)
- K. S. Srivishnu
- Polymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Dipanjan Banerjee
- Advanced Centre of Research in High Energy Materials (ACRHEM), University of Hyderabad, Hyderabad, India
| | - Ramya Athira Ramnagar
- Polymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Jagannath Rathod
- Advanced Centre of Research in High Energy Materials (ACRHEM), University of Hyderabad, Hyderabad, India
| | - Lingamallu Giribabu
- Polymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Venugopal Rao Soma
- Advanced Centre of Research in High Energy Materials (ACRHEM), University of Hyderabad, Hyderabad, India
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Sultan HA, Dhumad AM, Hassan QMA, Fahad T, Emshary CA, Raheem NA. Synthesis, characterization and the nonlinear optical properties of newly synthesized 4-((1,3-dioxo-1-phenylbutan-2-yl)diazenyl)benzenesulfonamide. Spectrochim Acta A Mol Biomol Spectrosc 2021; 251:119487. [PMID: 33503561 DOI: 10.1016/j.saa.2021.119487] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 01/06/2021] [Accepted: 01/11/2021] [Indexed: 06/12/2023]
Abstract
The dye of azo compound is prepared by coupling reaction of dizonium salt of sulfanilamide with benzoylacetone. The product is characterized by FTIR spectroscopy, Mass spectroscopy and 1H NMR spectroscopy. The geometries of the synthesized dye is optimized using B3LYP method and 6-31G (d,p) basis sets. Nonlinear optical properties are investigated theoretically by calculation of some quantum chemical descriptors using the DFT/B3LYP method with a 6-31G(d,p) basis set in comparison with urea as a standard. The UV-visible spectrum of synthesized azo dye are calculated using TD-DFT with B3LYP/6-31G(d,p) level. The nonlinear refractive index of the prepared dye is calculated via the diffraction ring patterns and Z-scan techniques using 473 nm visible, continuous wave laser light. The diffraction ring patterns are numerically simulated using the Fresnel-Kirchhoff theory with reasonable agreements. The property of optical limiting of the azo dye is tested.
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Affiliation(s)
- H A Sultan
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah 61001, Iraq
| | - Adil Muala Dhumad
- Department of Chemistry, College of Education for Pure Sciences, University of Basrah, 61001, Iraq
| | - Qusay M A Hassan
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah 61001, Iraq.
| | - Tarek Fahad
- Department of Chemistry, College of Education for Pure Sciences, University of Basrah, 61001, Iraq
| | - C A Emshary
- Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah 61001, Iraq
| | - Nabeel A Raheem
- Department of Chemistry, College of Education for Pure Sciences, University of Basrah, 61001, Iraq
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Ayare NN, Gupta PO, Sreenath MC, Chitrambalam S, Joe IH, Sekar N. NLOphoric imidazole-fused fluorescent anthraquinone dyes. Spectrochim Acta A Mol Biomol Spectrosc 2021; 246:119017. [PMID: 33045481 DOI: 10.1016/j.saa.2020.119017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 09/21/2020] [Accepted: 09/24/2020] [Indexed: 06/11/2023]
Abstract
The Z-scan and DFT techniques were explored to investigate the non-linear optical properties of anthraquinone fused imidazole-based D-π-A dyes. With the help of UV-visible spectral analysis, pH study, CV analysis, HOMO-LUMO interaction, MEP plots, and quinoidal character the influence of intramolecular charge transfer characteristics and H-bonding process on electronic and photophysical studies of anthraquinone derivatives were understood. The dyes 2-(4-(diethylamino)-2-hydroxyphenyl)-3H-anthra[1,2-d]imidazole-6,11-dione (AQ1) and 2-(2-hydroxynaphthalen-1-yl)-1H-anthra[1,2-d]imidazole-6,11-dione (AQ2) displayed a single emission with pronounced Stokes shift and thermal stability (upto 290 °C). The dye AQ1 exhibited strong charge transfer character which is explained by the ICT process leading to high nonlinear susceptibility χ(3) in AQ1 3.43 × 10-13 e.s.u relative to the dye AQ2 which has only ESIPT core. But, the dye AQ2 6.27 J cm-2 showed better optical limiting value. The NLO properties of AQ1 and AQ2 were computed by DFT functionals based on Hartree Fork (HF) percentage exchange. The dye AQ1 exhibits noticeable NLO properties. The global hybrid functionals with HF composition beyond 50% (BHHLYP, M06-HF) and the long rang corrected functionals (CAM-B3LYP, ωB97, and ωB97X) demonstrated comparable NLO properties relative to B3LYP and PBE0. It was observed that the combined effect of ICT and the H-bonding cores enhance the NLO properties. The experimental findings (Z-scan) were successfully correlated with theoretical (DFT) results.
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Affiliation(s)
- Nitesh N Ayare
- Dyestuff Technology Department, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai 400019, India
| | - Puja O Gupta
- Dyestuff Technology Department, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai 400019, India
| | - Mavila C Sreenath
- Centre for Molecular and Biophysics Research, Department of Physics, Mar Ivanios College, Thiruvananthapuram, Kerala 695015, India
| | - Subramaniyan Chitrambalam
- Centre for Molecular and Biophysics Research, Department of Physics, Mar Ivanios College, Thiruvananthapuram, Kerala 695015, India
| | - Isaac H Joe
- University of Kerala, Kariavattom, Trivandrum, 695581, Kerala, India
| | - Nagaiyan Sekar
- Dyestuff Technology Department, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai 400019, India.
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Jalilian B, Zakerhamidi MS, Sahrai M. Linear and nonlinear optical properties of human hemoglobin. Spectrochim Acta A Mol Biomol Spectrosc 2021; 244:118855. [PMID: 32882658 DOI: 10.1016/j.saa.2020.118855] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 08/11/2020] [Accepted: 08/15/2020] [Indexed: 06/11/2023]
Abstract
In this study, we investigated the possibility of interactions between the solvent molecules with the Heme group in the human hemoglobin. The results of this study answer a key question: whether the interactions of the Heme unit with its surroundings are interdependent or independent of the protein units of human hemoglobin. Contributions of the intermolecular interactions were determined by exploiting the solvatochromism spectroscopic data by Kamlet-Taft (KAT) polarity functions. Solvent polarity effects on the nonlinear properties of the Heme's groups in the human hemoglobin (Hb) were investigated via the Z-scan method. The experimental results obtained with spectroscopic and nonlinear optical parameters (absorption coefficient and refractive index) show that the mechanism of solvation and the interactions of Heme are controlled by suitable configuration of the protein units of hemoglobin. In other words, interactions of the Heme with α- and β-globins are an effective factor in controlling the optical behavior of Heme.
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Affiliation(s)
- B Jalilian
- Photonics Group, Aras International Campus, University of Tabriz, Tabriz 51665-163, Iran; Faculty of Physics, University of Tabriz, Tabriz, Iran; Research Institute for Applied Physics and Astronomy, University of Tabriz, Tabriz, Iran
| | - M S Zakerhamidi
- Photonics Group, Aras International Campus, University of Tabriz, Tabriz 51665-163, Iran; Faculty of Physics, University of Tabriz, Tabriz, Iran; Research Institute for Applied Physics and Astronomy, University of Tabriz, Tabriz, Iran.
| | - M Sahrai
- Photonics Group, Aras International Campus, University of Tabriz, Tabriz 51665-163, Iran; Faculty of Physics, University of Tabriz, Tabriz, Iran; Research Institute for Applied Physics and Astronomy, University of Tabriz, Tabriz, Iran
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Krekic S, Zakar T, Gombos Z, Valkai S, Mero M, Zimányi L, Heiner Z, Dér A. Nonlinear Optical Investigation of Microbial Chromoproteins. Front Plant Sci 2020; 11:547818. [PMID: 33193480 PMCID: PMC7609429 DOI: 10.3389/fpls.2020.547818] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 09/22/2020] [Indexed: 06/01/2023]
Abstract
Membrane-bound or cytosolic light-sensitive proteins, playing a crucial role in energy- and signal-transduction processes of various photosynthetic microorganisms, have been optimized for sensing or harvesting light by myriads of years of evolution. Upon absorption of a photon, they undergo a usually cyclic reaction series of conformations, and the accompanying spectro-kinetic events assign robust nonlinear optical (NLO) properties for these chromoproteins. During recent years, they have attracted a considerable interest among researchers of the applied optics community as well, where finding the appropriate NLO material for a particular application is a pivotal task. Potential applications have emerged in various branches of photonics, including optical information storage and processing, higher-harmonic and white-light continuum generation, or biosensorics. In our earlier work, we also raised the possibility of using chromoproteins, such as bacteriorhodopsin (bR), as building blocks for the active elements of integrated optical (IO) circuits, where several organic and inorganic photonic materials have been considered as active components, but so far none of them has been deemed ideal for the purpose. In the current study, we investigate the linear and NLO properties of biofilms made of photoactive yellow protein (PYP) and bR. The kinetics of the photoreactions are monitored by time-resolved absorption experiments, while the refractive index of the films and its light-induced changes are measured using the Optical Waveguide Lightmode Spectroscopy (OWLS) and Z-scan techniques, respectively. The nonlinear refractive index and the refractive index change of both protein films were determined in the green spectral range in a wide range of intensities and at various laser repetition rates. The nonlinear refractive index and refractive index change of PYP were compared to those of bR, with respect to photonics applications. Our results imply that the NLO properties of these proteins make them promising candidates for utilization in applied photonics, and they should be considered as valid alternatives for active components of IO circuits.
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Affiliation(s)
- Szilvia Krekic
- Institute of Biophysics, Biological Research Centre, Szeged, Hungary
- Doctoral School of Multidisciplinary Medical Sciences, University of Szeged, Szeged, Hungary
| | - Tomás Zakar
- Institute of Plant Biology, Biological Research Centre, Szeged, Hungary
| | - Zoltán Gombos
- Institute of Plant Biology, Biological Research Centre, Szeged, Hungary
| | - Sándor Valkai
- Institute of Biophysics, Biological Research Centre, Szeged, Hungary
| | - Mark Mero
- Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, Berlin, Germany
| | - László Zimányi
- Institute of Biophysics, Biological Research Centre, Szeged, Hungary
| | - Zsuzsanna Heiner
- School of Analytical Sciences Adlershof, Humboldt-Universität zu Berlin, Berlin, Germany
| | - András Dér
- Institute of Biophysics, Biological Research Centre, Szeged, Hungary
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Fonseca FLA, da Veiga GL, Alves BDCA, Alves SIPMDN. Liquid biopsy in cancer using the Z-scan technique: a new approach to discover biomarkers in cancer. Future Sci OA 2020; 7:FSO638. [PMID: 33437502 PMCID: PMC7787153 DOI: 10.2144/fsoa-2020-0054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 09/16/2020] [Indexed: 11/23/2022] Open
Abstract
AIM Biomarkers have been broadly studied as a tool for the diagnosis and prognosis for different types of cancer. Z-scan is a kind of measurement technique that generates a nonlinear refractive index (n2). Today, Z-scan has been used in oncology to discriminate between solid tumors and to identify tumor circulating cell-free DNA in liquid samples. MATERIALS & METHODS According to the inclusion and exclusion criteria defined in this review, 35 articles were selected. CONCLUSION The use of this technique for this kind of measurement will allow for a rapid and precise diagnosis of different types of tumor and may lead to better therapeutic approaches.
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Affiliation(s)
- Fernando Luiz Affonso Fonseca
- Clinical Analysis Laboratory, Centro Universitário Saúde ABC, Santo André 06090-650, Brazil
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas (ICAQF), Universidade Federal de São Paulo – UNIFESP, Diadema 09972-270, Brazil
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Liu C, Yuan Y, Zhang X, Su J, Song X, Ling H, Liao Y, Zhang H, Zheng Y, Li J. Ta Doping Effect on Structural and Optical Properties of InTe Thin Films. Nanomaterials (Basel) 2020; 10:nano10091887. [PMID: 32967127 PMCID: PMC7558691 DOI: 10.3390/nano10091887] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/16/2020] [Accepted: 09/17/2020] [Indexed: 12/02/2022]
Abstract
The objective of this work was to study the influence of Ta doping on the structural, transmittance properties, linear absorption parameter, and nonlinear absorption properties of InTe thin films. The as-deposited samples with different Ta doping concentrations were prepared by a magnetron co-sputtering technique and then annealed in nitrogen atmosphere. Structural investigations by X-ray diffraction revealed the tetragonal structure of InTe samples and that the crystallinity decreases with increasing Ta doping concentration. Further structural analysis by Raman spectra also showed good agreement with X-ray diffraction results. The Ta doping concentration and sample thickness determined by energy-dispersive X-ray spectroscopy and scanning electron microscopy increased as Ta dopant increased. In addition, X-ray photoelectron spectroscopic was carried out to analyze the chemical states of the elements. UV–VIS–NIR transmittance spectra were applied to study the transmittance properties and calculate the linear absorption coefficient. Due to Burstein–Moss effect, the absorption edge moved to shorter wavelengths. Meanwhile, the values of band gap were found to increase from 1.71 ± 0.02 eV to 1.85 ± 0.01 eV with the increase of Ta doping concentration. By performing an open aperture Z-scan technique, we found that all Ta-doped InTe samples exhibited two-photon absorption behaviors. The nonlinear optical absorption parameters, such as modulation depth, two-photon absorption coefficient, and two-photon absorption cross-section, decrease with increasing Ta concentration, whereas the damage threshold increases from 176 ± 0.5 GW/cm2 to 242 ± 0.5 GW/cm2. These novel properties show the potential for applications in traditional optoelectronic devices and optical limiters.
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Affiliation(s)
- Chunmin Liu
- Department of Optical Science and Engineering, Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai 200433, China; (C.L.); (Y.Y.); (X.Z.); (J.S.); (X.S.); (H.L.); (Y.L.); (H.Z.); (Y.Z.)
| | - Yafei Yuan
- Department of Optical Science and Engineering, Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai 200433, China; (C.L.); (Y.Y.); (X.Z.); (J.S.); (X.S.); (H.L.); (Y.L.); (H.Z.); (Y.Z.)
- Department of Electronic Engineering, Center for Intelligent Medical Electronics, Fudan University, Shanghai 200433, China
| | - Xintong Zhang
- Department of Optical Science and Engineering, Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai 200433, China; (C.L.); (Y.Y.); (X.Z.); (J.S.); (X.S.); (H.L.); (Y.L.); (H.Z.); (Y.Z.)
| | - Jing Su
- Department of Optical Science and Engineering, Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai 200433, China; (C.L.); (Y.Y.); (X.Z.); (J.S.); (X.S.); (H.L.); (Y.L.); (H.Z.); (Y.Z.)
| | - Xiaoxiao Song
- Department of Optical Science and Engineering, Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai 200433, China; (C.L.); (Y.Y.); (X.Z.); (J.S.); (X.S.); (H.L.); (Y.L.); (H.Z.); (Y.Z.)
| | - Hang Ling
- Department of Optical Science and Engineering, Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai 200433, China; (C.L.); (Y.Y.); (X.Z.); (J.S.); (X.S.); (H.L.); (Y.L.); (H.Z.); (Y.Z.)
| | - Yuanjie Liao
- Department of Optical Science and Engineering, Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai 200433, China; (C.L.); (Y.Y.); (X.Z.); (J.S.); (X.S.); (H.L.); (Y.L.); (H.Z.); (Y.Z.)
| | - Hao Zhang
- Department of Optical Science and Engineering, Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai 200433, China; (C.L.); (Y.Y.); (X.Z.); (J.S.); (X.S.); (H.L.); (Y.L.); (H.Z.); (Y.Z.)
| | - Yuxiang Zheng
- Department of Optical Science and Engineering, Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai 200433, China; (C.L.); (Y.Y.); (X.Z.); (J.S.); (X.S.); (H.L.); (Y.L.); (H.Z.); (Y.Z.)
| | - Jing Li
- Department of Optical Science and Engineering, Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai 200433, China; (C.L.); (Y.Y.); (X.Z.); (J.S.); (X.S.); (H.L.); (Y.L.); (H.Z.); (Y.Z.)
- Correspondence:
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Hadi F, Ghader A, Shakeri-Zadeh A, Asgari H, Farashahi A, Behruzi M, Ghaznavi H, Ardakani AA. Magneto-plasmonic nanoparticle mediated thermo-radiotherapy significantly affects the nonlinear optical properties of treated cancer cells. Photodiagnosis Photodyn Ther 2020; 30:101785. [PMID: 32330612 DOI: 10.1016/j.pdpdt.2020.101785] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 03/16/2020] [Accepted: 04/17/2020] [Indexed: 11/30/2022]
Abstract
In order to determine the level of cell damage in cancerous cells, current cytogenetic tests have limitations such as time consumption and high cost. The aim of this study was to demonstrate the ability of nonlinear refractive (NLR) index as a predictor of breast cell damage caused by magneto-plasmonic nanoparticle based thermo-radiotherapy treatments. MCF-7 breast cancer cells were subjected individually to the treatment of radiation, radio-frequency (RF) hyperthermia, and radiation + RF hyperthermia. These treatments were repeated in the presence of magneto-plasmonic nanoparticle (Au@IONP). The MTT and nonlinear optical assays were used to evaluate the damage induced by different treatment modalities. The results of MTT were correlated with Z-scan, as the magnitude of nonlinear refraction increased with higher intensity of induced cell damages. In this regard, the lowest cell viability (38 %,) and highest magnitude of NLR index (+28.12) were obtained from combination of radiation (at 4 Gy dose) and hyperthermia treatment in the presence of nanoparticles. The proposed optical index (NLR) indicated high capability and can be used as an auxiliary tool to monitor induced cell damage during different treatment strategies. This technique is fast, noninvasive, does not impose cost, and finally does not waste materials.
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Affiliation(s)
- Fahimeh Hadi
- Medical Physics Department, School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Alireza Ghader
- Medical Physics Department, School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Ali Shakeri-Zadeh
- Medical Physics Department, School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Hamid Asgari
- Medical Physics Department, School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Ali Farashahi
- Medical Physics Department, School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Masume Behruzi
- Anatomical Sciences Department, School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Habib Ghaznavi
- Cellular and Molecular Research Center, Zahedan University of Medical Sciences (ZaUMS), Zahedan, Iran.
| | - Ali Abbasian Ardakani
- Medical Physics Department, School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran.
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de Freitas MCP, Martins Figueiredo Neto A, Damasceno NR. Nonlinear optical responses of oxidized low-density lipoprotein: Cutoff point for z-scan peak-valley distance. Photodiagnosis Photodyn Ther 2020; 30:101689. [PMID: 32087295 DOI: 10.1016/j.pdpdt.2020.101689] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 01/28/2020] [Accepted: 02/18/2020] [Indexed: 11/26/2022]
Abstract
The development of new methods to assess biomarkers of cardiovascular disease is currently a subject of scientific research. This article broadens our view of nonlinear optical responses of oxidized low density lipoprotein (LDL) evaluated using the Z-scan peak-valley distance and proposes a cutoff point. We investigated the association of peak-valley distance and some cardiovascular risk factors related with sociodemographic, clinical and anthropometric profiles and plasma biomarkers such as lipid and glucose profile, apolipoprotein, lipoprotein subfractions and omega 3 fatty acids. Z-scan analysis was performed using isolated LDL after ultracentrifugation in human blood samples collected after fasting. Peak-valley distance is a parameter that decreases directly depending on the oxidizability of LDL. As peak-valley distance was associated with relevant biomarkers of cardiovascular risk, we tested cutoff points for categorization and the best results were obtained using percentile < 75 (Lowz-scan) and percentile ≥ 75 (Highz-scan). The regression logistic models tested after establishing the cutoff point for peak-valley distance showed that increased levels of plasma high-density lipoprotein cholesterol, apolipoprotein A-I, large high-density lipoprotein subfractions and docosahexaenoic acid are directly associated with HighZ-scan. Conversely, high levels of small LDL were associated with decreased odds of presenting HighZ-scan. In conclusion, the cutoff point for peak-valley distance was able to identify atherogenic characteristics of LDL and its relationship with some parameters of high-density lipoprotein functionality.
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Affiliation(s)
- Maria Camila Pruper de Freitas
- Department of Nutrition, Faculty of Public Health, University of Sao Paulo, Av. Dr. Arnaldo, 715, 01246-904, Sao Paulo, SP, Brazil.
| | | | - Nágila Raquel Damasceno
- Department of Nutrition, Faculty of Public Health, University of Sao Paulo, Av. Dr. Arnaldo, 715, 01246-904, Sao Paulo, SP, Brazil.
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Abegão LMG, Santos FA, Fonseca RD, Barreiros ALBS, Barreiros ML, Alves PB, Costa EV, Souza GB, Alencar MARC, Mendonça CR, Kamada K, De Boni L, Rodrigues JJ. Chalcone-based molecules: Experimental and theoretical studies on the two-photon absorption and molecular first hyperpolarizability. Spectrochim Acta A Mol Biomol Spectrosc 2020; 227:117772. [PMID: 31707018 DOI: 10.1016/j.saa.2019.117772] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 10/05/2019] [Accepted: 11/05/2019] [Indexed: 06/10/2023]
Abstract
Five chalcone-based molecules denominated by C-3 ((E)-1-(4-methoxyphenyl)-3-phenylprop-2-en-1-one), C-4 ((E)-1,3-bis(4-methoxyphenyl)prop-2-en-1-one), C-5 ((E)-1-(benzo[d][1,3]dioxol-5-yl)-3-(4-methoxyphenyl)prop-2-en-1-one), C-6 ((E)-3-(naphthalen-1-yl)-1-phenylprop-2-en-1-one) and C-7 ((E)-1-(4-methoxyphenyl)-3-(naphthalen-1-yl)prop-2-en-1-one) were synthesized by Claisen-Schmidt reaction in solution of NaOH in water/ethanol 2:1. The aldehydes used were benzaldehyde, anisaldehyde, and β-naphthaldehyde, while the used ketones were acetophenone, p-methoxyacetophenone, and 3,4-methylenedioxyacetophenone. Z-scan and hyper-Rayleigh scattering techniques were used to study the nonlinear optical properties of these compounds in dichloromethane medium. By using Z-scan technique with femtosecond pulses, two-photon absorption cross-sections (σTPA) were determined, while the first molecular electronic hyperpolarizabilities (βHRS) were evaluated by the hyper-Rayleigh scattering technique, with picosecond pulses. From the recorded two-photon absorption spectra, it was identified that compound C-7 presented the highest σTPA, regarding the HOMO-LUMO transition, with a value of 40 GM, while C-6 achieved the lowest value for the same transition with 13 GM. Concerning the values of the first molecular hyperpolarizability, compound C-4 presented the highest value, 38 × 10-30 cm4 statvolt-1, while C-3 presented the lowest βHRS value of about 16 × 10-30 cm4 statvolt-1. Time-dependent density functional theory calculations were used to simulate the one- and two-photon absorption spectra, as well to predict the theoretical value of βHRS in dichloromethane and vacuum medium.
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Affiliation(s)
- Luis M G Abegão
- Departamento de Física, Universidade Federal de Sergipe, 49100-000 São Cristovão, SE, Brazil; Department of Radiology & Biomedical Imaging, School of Medicine, Yale University, 300 Cedar Street, New Haven, CT 06520, USA.
| | - Francisco A Santos
- Departamento de Física, Universidade Federal de Sergipe, 49100-000 São Cristovão, SE, Brazil
| | - Ruben D Fonseca
- Universidad Popular del Cesar, Departamento de Fisica, Barrio Sabana, 2000004 Valledupar, Cesar, Colombia; Instituto de Física de São Carlos, Universidade de São Paulo, CP 369, 13560-970 São Carlos, SP, Brazil
| | - André L B S Barreiros
- Departamento de Química, Universidade Federal de Sergipe, 49100-000 São Cristovão, SE, Brazil
| | - Marizeth L Barreiros
- Departamento de Química, Universidade Federal de Sergipe, 49100-000 São Cristovão, SE, Brazil
| | - Péricles B Alves
- Departamento de Química, Universidade Federal de Sergipe, 49100-000 São Cristovão, SE, Brazil
| | - Emmanoel V Costa
- Departamento de Química, Universidade Federal do Amazonas, 69077-000 Manaus, AM, Brazil
| | - Gabriella B Souza
- Departamento de Química, Universidade Federal de Sergipe, 49100-000 São Cristovão, SE, Brazil
| | - Márcio A R C Alencar
- Departamento de Física, Universidade Federal de Sergipe, 49100-000 São Cristovão, SE, Brazil
| | - Cleber R Mendonça
- Instituto de Física de São Carlos, Universidade de São Paulo, CP 369, 13560-970 São Carlos, SP, Brazil
| | - Kenji Kamada
- National Institute of Advanced Industrial Science and Technology, Ikeda, Osaka 563-8577, Japan
| | - Leonardo De Boni
- Instituto de Física de São Carlos, Universidade de São Paulo, CP 369, 13560-970 São Carlos, SP, Brazil
| | - José Joatan Rodrigues
- Departamento de Física, Universidade Federal de Sergipe, 49100-000 São Cristovão, SE, Brazil
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John NL, Abraham S, Sajan D, Philip R, Joy N. Molecular structure, NLO properties and vibrational analysis of l-Histidine tetra fluro borate by experimental and computational spectroscopic techniques. Spectrochim Acta A Mol Biomol Spectrosc 2020; 226:117615. [PMID: 31606671 DOI: 10.1016/j.saa.2019.117615] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 10/06/2019] [Indexed: 06/10/2023]
Abstract
l-histidine tetra fluroborate (L-HTFB) is a semi-organic NLO material. Ab-initio computations were performed at CAM-B3LYP/ 6-311++g(d,p) level of theory to arrive at the structures, energies, and vibrational wave numbers. The experimental FT-IR and FT-Raman spectra of L-HTFB have been recorded and analyzed. It is compared with the simulated spectra. The scaled wave numbers obtained are in good agreement with the experimental values. Hirshfeld surface analysis represented in the 2D fingerprint plot reveals the interaction within the compound. Optimized geometry reveals that the complexes l -histidine (L-H) and tetrafluoroborate (TFB) are linked by H-F bond which provides inter and intra molecular hydrogen bonded interactions such as N10-H16⋯F25, N11-H17⋯F22, N11-H14⋯F24, N11-H14⋯N10 and N11-H15⋯O12. The inter-molecular distances H17⋯F22, H14⋯F24 and H16⋯F25 are in between 1.82 Å and 2.53 Å. The intra molecular distances H14⋯N10 and H15⋯O12 are found to be at 2.17 Å and 1.71 Å which stabilizes lone pair electron of N10 and O12 with energies 11.89 and 59.91 KJ/mol respectively. The intra and inter molecular hyperconjugations responsible for the stability of the molecule are well identified theoretically using the NBO analysis. Third order optical nonlinearity is measured by means of the open aperture Z-scan technique which reveals that the crystal has optical limiting property. Photoluminescence results clearly indicate the use of L-HTFB as a new violet-light emitting material.
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Affiliation(s)
- Nimmy L John
- Post Graduate & Research Department of Physics, Christian College, Chengannur, Kerala, 689122, India; Centre for Advanced Functional Materials, DST FIST, KSCSTE SARD Supported Post Graduate & Research Department of Physics, Bishop Moore College, Mavelikara, Kerala, 690110, India
| | - Sunila Abraham
- Post Graduate & Research Department of Physics, Christian College, Chengannur, Kerala, 689122, India.
| | - D Sajan
- Centre for Advanced Functional Materials, DST FIST, KSCSTE SARD Supported Post Graduate & Research Department of Physics, Bishop Moore College, Mavelikara, Kerala, 690110, India
| | - Reji Philip
- Ultrafast and Nonlinear Optics Lab, Light and Matter Physics Group, Raman Research Institute, Sadhashivanagar, Bangalore, 560 080, India
| | - Nithin Joy
- Ultrafast and Nonlinear Optics Lab, Light and Matter Physics Group, Raman Research Institute, Sadhashivanagar, Bangalore, 560 080, India
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Marbello OD, Valbuena S, Racedo FJ. Study of the nonlinear optical response and thermal stability of edible oils using the Z-scan technique. Talanta 2020; 206:120226. [PMID: 31514852 DOI: 10.1016/j.talanta.2019.120226] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 08/02/2019] [Accepted: 08/03/2019] [Indexed: 10/26/2022]
Abstract
Organic compounds and vegetable origin oils are subject to scratiny in the photonics and nonlinear optics area, due to their high non-linear response: a characteristic linked to the molecular nature of these compounds and their own chemical bond. In the food industry, quick and non-invasive studies are needed to evaluate the nutritional quality of edible products. The nonlinear optical response of 4 vegetable oils was analyzed: extra virgin olive oil (EVOO), extra virgin sesame oil (EVSO), extra refined linseed oil (ERLO) and virgin avocado oil (VAVO), using the Z-scan technique. Where the third order electric susceptibility value (χ3), refractive index (η2) and characteristic non-linear absorption coefficient (β) were determined for each compound. Parameters that were found by measuring the transmittance as a function of the excitation power using a Nd: YAG laser of 532 nm operating in CW mode. In addition, the η2 response was compared according to the oil type, it was determined that EVOO presents a greater non-linear response at low excitation potencies. Therefore, an additional study was performed on samples exposed to thermal stress to evaluate oxidative stability, again using the Z-scan technique n order to review the relationship between nonlinear optical properties with chemical changes resulting from heating.
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Affiliation(s)
- O D Marbello
- Grupo De Espectroscopía Óptica de Emisión y Láser (GEOEL), Universidad del Atlántico,Puerto Colombia, Atlántico, Colombia
| | - S Valbuena
- Programa de licenciatura en matemáticas, Universidad del Atlántico, Puerto Colombia, Atlántico, Colombia
| | - F J Racedo
- Grupo De Espectroscopía Óptica de Emisión y Láser (GEOEL), Universidad del Atlántico,Puerto Colombia, Atlántico, Colombia.
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Zhang Z, Li P, Gu Y. Tunable Nonlinear Optical Property of MnS Nanoparticles with Different Size and Crystal Form. Nanomaterials (Basel) 2019; 10:E34. [PMID: 31877785 DOI: 10.3390/nano10010034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/16/2019] [Accepted: 12/17/2019] [Indexed: 12/25/2022]
Abstract
It is significant to study the reason that semiconductor material has adjustable third-order optical nonlinearity through crystal form and dimensions are changed. αMnS nanoparticles with different crystal forms and sizes were successfully prepared by one-step hydrothermal synthesis method and their size-limited third-order nonlinear optical property was tested by Z-scan technique with 30 ps laser pulses at 532 nm wavelength. Nanoparticles of different crystal forms exhibited different NLO (nonlinear optical) responses. γMnS had stronger NLO response than αMnS because of higher fluorescence quantum yield. Two-photon absorption and the nonlinear refraction are enhanced as size of nanoparticlesreduced. The nanoparticles had maximum NLO susceptibility which was 3.09 × 10−12 esu. Susceptibility of αMnS increased about nine times than that of largest nanoparticles. However, it was reduced when size was further decreased. This trend was explained by the effects of light induced dipole moments. And defects in αMnS nanoparticles also had effect on this nonlinear process. MnS nanoparticles had potential application value in optical limiting and optical modulation.
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Swain BC, Das AK, Tripathy U. Probing third-order nonlinearity in serotonin: A Z-scan study. Spectrochim Acta A Mol Biomol Spectrosc 2019; 223:117319. [PMID: 31280124 DOI: 10.1016/j.saa.2019.117319] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 06/24/2019] [Accepted: 06/25/2019] [Indexed: 06/09/2023]
Abstract
Serotonin (5-hydroxytryptamine, 5-HT) is a crucial endogenous monoamine neurotransmitter that modulates neurotransmission, gastrointestinal motility, hemostasis, and cardiovascular integrity. There have been numerous attempts to study the biochemical and photophysical properties of serotonin to carry out its molecular imaging and quantitative estimation. Here, we investigate the properties of serotonin at physiological concentration and pH using a continuous wave (CW) laser excitation closed-aperture (CA) Z-scan technique. Serotonin is packaged at high concentration inside the acidic environment of vesicles, and upon release gets diluted at the release sites in a neutral pH environment. Our solution-based measurements indicate that serotonin showed negative refractive nonlinearity and positive absorptive nonlinearity at a neutral pH. However, in the acidic medium, it showed negative refractive nonlinearity and mostly negative absorptive nonlinearity. The effect of excitation laser power on the observed nonlinearity is also verified. We attribute the origin of the nonlinearity in serotonin to the thermal lensing effect. Our robust and straightforward strategy to probe the monoamine neurotransmitter properties will provide new avenues to investigate serotonergic processes.
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Affiliation(s)
- Bikash Chandra Swain
- Department of Applied Physics, Indian Institute of Technology (Indian School of Mines) Dhanbad, Jharkhand 826004, India
| | - Anand Kant Das
- Institute of Applied Physics, Vienna University of Technology, Getreidemarkt 9, A-1060 Vienna, Austria
| | - Umakanta Tripathy
- Department of Applied Physics, Indian Institute of Technology (Indian School of Mines) Dhanbad, Jharkhand 826004, India.
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Zhang Z, Li P, Li P, Gu Y. Facile One-Step Synthesis and Enhanced Optical Nonlinearity of Graphene-γMnS. Nanomaterials (Basel) 2019; 9:E1654. [PMID: 31766344 DOI: 10.3390/nano9121654] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 11/18/2019] [Accepted: 11/18/2019] [Indexed: 12/12/2022]
Abstract
Graphene-γMnS were prepared by facile one-step hydrothermal method. Structures and properties of samples were explored by characterization, and nonlinear optical (NLO) enhancement of nanocomposites (NCs) was fully studied. Nanoparticles and NCs were tested at 532 nm by a Z-scan technique. With γMnS attached in G layers, NLO susceptibility of graphene-γMnS was greatly improved under single-pulse laser irradiation compared with G and γMnS. The nonlinearity enhanced was attributed to local field effect and charge transfer between γMnS and graphene layers. And NLO property enhancement was restricted by non-radiative defects in graphene-γMnS. Exploring the mechanism of nonlinearity enhancement was significant for fabrication of NLO devices. However, the optical nonlinearity decreased first and then increased with further increased addition of GO, because the dispersion of γMnS attached on graphene surface might make density of sp2 fragment and defects changed. Graphene-γMnS exhibited excellent and tunable NLO performance, illustrating that NCs materials have potential applications in NLO devices.
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Ngoy BP, May AK, Mack J, Nyokong T. Optical Limiting and Femtosecond Pump-Probe Transient Absorbance Properties of a 3,5-distyrylBODIPY Dye. Front Chem 2019; 7:740. [PMID: 31737610 PMCID: PMC6834545 DOI: 10.3389/fchem.2019.00740] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 10/16/2019] [Indexed: 12/22/2022] Open
Abstract
The optical limiting (OL) properties of a 3,5-di-p-benzyloxystyrylBODIPY dye with an p-acetamidophenyl moiety at the meso-position have been investigated by using the open-aperture Z-scan technique at 532 nm with 10 ns laser pulses. There is a ca. 140 nm red shift of the main spectral band to 644 nm relative to the corresponding BODIPY core dye, due to the incorporation of p-benzyloxystyryl groups at the 3,5-positions. As a result, there is relatively weak absorbance across most of the visible region under ambient light conditions. Analysis of the observed reverse saturable absorbance (RSA) profiles demonstrates that the dye is potentially suitable for use in optical limiting applications as has been reported previously for other 3,5-distyrylBODIPY dyes. Time-resolved transient absorption spectroscopy and kinetic studies with femtosecond and nanosecond scale laser pulses provide the first direct spectral evidence that excited state absorption (ESA) from the S1 state is responsible for the observed OL properties.
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Affiliation(s)
- Bokolombe P Ngoy
- Department of Chemistry, Institute for Nanotechnology Innovation, Rhodes University, Makhanda, South Africa.,Département de Chimie, Université de Kinshasa, Kinshasa, Democratic Republic of the Congo
| | - Aviwe K May
- Department of Chemistry, Institute for Nanotechnology Innovation, Rhodes University, Makhanda, South Africa
| | - John Mack
- Department of Chemistry, Institute for Nanotechnology Innovation, Rhodes University, Makhanda, South Africa
| | - Tebello Nyokong
- Department of Chemistry, Institute for Nanotechnology Innovation, Rhodes University, Makhanda, South Africa
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Gonçalves PJ, Bezerra FC, Almeida LM, Alonso L, Souza GRL, Alonso A, Zílio SC, Borissevitch IE. Effects of bovine serum albumin (BSA) on the excited-state properties of meso-tetrakis(sulfonatophenyl) porphyrin (TPPS 4). Eur Biophys J 2019; 48:721-9. [PMID: 31549191 DOI: 10.1007/s00249-019-01397-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 09/13/2019] [Accepted: 09/16/2019] [Indexed: 02/07/2023]
Abstract
To infer changes in the photophysical properties of porphyrins due to complexation with albumin, a combination of Z-scan and conventional spectroscopic techniques was employed. We measured the characteristics of excited states of meso-tetrakis(sulfonatophenyl) porphyrin bound to bovine serum albumin and observed that the binding reduces the intersystem crossing quantum yield and increases the internal conversion one. A reverse saturable absorption process was observed in the nanosecond timescale. These results are important for prediction of the efficiency of this complex in medical and optical applications, because associating porphyrins to proteins enables better accumulation in tumors and improves its stability in optical devices, but at the same time, decreases its triplet quantum yield.
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Abdelwahab I, Dichtl P, Grinblat G, Leng K, Chi X, Park IH, Nielsen MP, Oulton RF, Loh KP, Maier SA. Giant and Tunable Optical Nonlinearity in Single-Crystalline 2D Perovskites due to Excitonic and Plasma Effects. Adv Mater 2019; 31:e1902685. [PMID: 31157473 DOI: 10.1002/adma.201902685] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Indexed: 06/09/2023]
Abstract
Materials with large optical nonlinearity, especially in the visible spectral region, are in great demand for applications in all-optical information processing and quantum optics. 2D hybrid Ruddlesden-Popper-type halide perovskites (RPPs) with tunable ultraviolet-to-visible direct bandgaps exhibit large nonlinear optical responses due to the strong excitonic effects present in their multiple quantum wells. Using a microscopic Z-scan setup with femtosecond laser pulses tunable across the visible spectrum, it is demonstrated that single-crystalline lead halide RPP nanosheets possess unprecedentedly large nonlinear refraction and absorption coefficients near excitonic resonances. A room-temperature insulator (exciton)-metal (plasma) Mott transition is found to occur near the exciton resonance of the thinnest qunatum-well RPPs, boosting the nonlinear response. Owing to the rapidly changing refractive index near resonance, a single RPP crystal can exhibit different nonlinear functionalities across the excitation spectrum. The results suggest that RPPs are efficient nonlinear materials in the visible waveband, indicating their potential use in integrated nonlinear photonic applications such as optical modulation and switching.
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Affiliation(s)
- Ibrahim Abdelwahab
- The Blackett Laboratory, Department of Physics, Imperial College London, London, SW7 2AZ, UK
- Centre for Advanced 2D Materials (CA2DM) and Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore, 117456, Singapore
| | - Paul Dichtl
- The Blackett Laboratory, Department of Physics, Imperial College London, London, SW7 2AZ, UK
| | - Gustavo Grinblat
- The Blackett Laboratory, Department of Physics, Imperial College London, London, SW7 2AZ, UK
- Departamento de Física, FCEN, IFIBA-CONICET, Universidad de Buenos Aires, Intendente Güiraldes 2160, C1428EGA, Buenos Aires, Argentina
| | - Kai Leng
- Centre for Advanced 2D Materials (CA2DM) and Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
| | - Xiao Chi
- Centre for Advanced 2D Materials (CA2DM) and Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
- Singapore Synchrotron Light Source, National University of Singapore, 5 Research Link, Singapore, 117603, Singapore
| | - In-Hyeok Park
- Centre for Advanced 2D Materials (CA2DM) and Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
| | - Michael P Nielsen
- The Blackett Laboratory, Department of Physics, Imperial College London, London, SW7 2AZ, UK
- School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Rupert F Oulton
- The Blackett Laboratory, Department of Physics, Imperial College London, London, SW7 2AZ, UK
| | - Kian Ping Loh
- Centre for Advanced 2D Materials (CA2DM) and Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
| | - Stefan A Maier
- The Blackett Laboratory, Department of Physics, Imperial College London, London, SW7 2AZ, UK
- Chair in Hybrid Nanosystems, Nanoinstitute Munich, Faculty of Physics, Ludwig-Maximilians-Universität München, 80539, München, Germany
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