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Kohila Rani K, Xiao YH, Devasenathipathy R, Gao K, Wang J, Kang X, Zhu C, Chen H, Jiang L, Liu Q, Qiao F, Li Z, Wu DY, Lu G. Raman Monitoring of the Electro-Optical Synergy-Induced Enhancements in Carbon-Bromine Bond Cleavage, Reaction Rate, and Product Selectivity of p-Bromothiophenol. ACS Appl Mater Interfaces 2024. [PMID: 38757708 DOI: 10.1021/acsami.4c01259] [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: 05/18/2024]
Abstract
Electro-optical synergy has recently been targeted to improve the separation of hot carriers and thereby further improve the efficiency of plasmon-mediated chemical reactions (PMCRs). However, the electro-optical synergy in PMCRs needs to be more deeply understood, and its contribution to bond dissociation and product selectivity needs to be clarified. Herein, the electro-optical synergy in plasmon-mediated reduction of p-bromothiophenol (PBTP) was studied on a plasmonic nanostructured silver electrode using in situ Raman spectroscopy and theoretical calculations. It was found that the electro-optical synergy-induced enhancements in the cleavage of carbon-bromine bonds, reaction rate, and product selectivity (4,4'-biphenyl dithiol vs thiophenol) were largely affected by the applied bias, laser wavelength, and laser power. The theoretical simulation further clarified that the strong electro-optical synergy is attributed to the matching of energy band diagrams of the plasmonic silver with those of the adsorbed PBTP molecules. A deep understanding of the electro-optical synergy in PBTP reduction and the clarification of the mechanism will be highly beneficial for the development of other highly efficient PMCRs.
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Affiliation(s)
- Karuppasamy Kohila Rani
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Yuan-Hui Xiao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, PR China
| | - Rajkumar Devasenathipathy
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Kun Gao
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Jiazheng Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, PR China
| | - Xing Kang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Chengcheng Zhu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Haonan Chen
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Lu Jiang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Qinghua Liu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Furong Qiao
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Zhuoyao Li
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - De-Yin Wu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, PR China
| | - Gang Lu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
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Cleret de Langavant C, Oh J, Lochon F, Tusseau-Nenez S, Ponsinet V, Baron A, Gacoin T, Kim J. Near-Infrared Dual-Band LSPR Coupling in Oriented Assembly of Doped Metal Oxide Nanocrystal Platelets. Nano Lett 2024; 24:3074-3081. [PMID: 38412556 DOI: 10.1021/acs.nanolett.3c04849] [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: 02/29/2024]
Abstract
Coupling effects of localized surface plasmon resonance (LSPR) represent an efficient means to tune the plasmonic modes and to enhance the near-field. While LSPR coupling in metal nanoparticles has been extensively explored, limited attention has been given to heavily doped semiconductor nanocrystals. Here, we investigate the LSPR coupling behavior of Cs-doped tungsten oxide (CsxWO3-δ) nanocrystal platelets as they undergo an oriented assembly into parallel stacks. The oriented assembly was achieved by lowering the dispersion stability of the colloidal nanoplatelets, of which the basal surface was selectively ligand-functionalized. This assembly induces simultaneous blue-shifts and red-shifts of dual-mode LSPR peaks without compromising the intensity and quality factor. This stands in contrast to the significant damping, broadening, and overall red-shift of the LSPR observed in random assemblies. Computational simulations successfully replicate the experimental observations, affirming the potential of this coupling phenomenon of near-infrared dual-mode LSPR in diverse applications including solar energy, bio-optics, imaging, and telecommunications.
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Affiliation(s)
- Capucine Cleret de Langavant
- Laboratoire de Physique de la Matière Condensée, CNRS, École Polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau, France
| | - Jisoo Oh
- Laboratoire de Physique de la Matière Condensée, CNRS, École Polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau, France
| | - Florian Lochon
- Université de Bordeaux, CNRS, CRPP, UMR 5031, F-33600 Pessac, France
| | - Sandrine Tusseau-Nenez
- Laboratoire de Physique de la Matière Condensée, CNRS, École Polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau, France
| | - Virginie Ponsinet
- Université de Bordeaux, CNRS, CRPP, UMR 5031, F-33600 Pessac, France
| | - Alexandre Baron
- Université de Bordeaux, CNRS, CRPP, UMR 5031, F-33600 Pessac, France
- Institut Universitaire de France, 1 Rue Descartes, 75231 Paris Cedex 05, France
| | - Thierry Gacoin
- Laboratoire de Physique de la Matière Condensée, CNRS, École Polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau, France
| | - Jongwook Kim
- Laboratoire de Physique de la Matière Condensée, CNRS, École Polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau, France
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Sun Y, Xu G, Wang Y, Song P, Zhang Y, Xia L. Surface plasmon-assisted catalytic reduction of p-nitrothiophenol for the detection of Fe 2+ by surface-enhanced Raman spectroscopy. Anal Biochem 2023; 680:115314. [PMID: 37678582 DOI: 10.1016/j.ab.2023.115314] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 08/12/2023] [Accepted: 09/04/2023] [Indexed: 09/09/2023]
Abstract
Herein, we developed a concise, time-efficient, and high selective assay for detecting Fe2+ through its triggered surface plasmon-assisted reduction reaction of p-nitrothiophenol (PNTP) to p,p'-dimercaptoazobenzene (DMAB) on the surface of gold nanoparticles (AuNPs) based on surface-enhanced Raman scattering (SERS) spectroscopy. When Fe2+ was added to the PNTP-AuNPs system, the appearance of three characteristic peaks at 1142, 1392, and 1440 cm-1 attributed to DMAB demonstrated that Fe2+ induced the catalytic coupling reaction of PNTP. The Raman intensity ratio of the peak at 1142 cm-1 to the peak at 1336 cm-1 and the concentration of Fe2+ presented a good linear response from 10 to 100 μM with a limit of detection (LOD) of 0.35 μM. More importantly, the entire detection process can be completed within 2 min and further successfully used for the detection of Fe2+ in river water.
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Affiliation(s)
- Ye Sun
- College of Chemistry, Liaoning University, Shenyang, 110036, People's Republic of China
| | - Guangda Xu
- College of Chemistry, Liaoning University, Shenyang, 110036, People's Republic of China
| | - Yue Wang
- College of Chemistry, Liaoning University, Shenyang, 110036, People's Republic of China
| | - Peng Song
- College of Physics, Liaoning University, Shenyang, 110036, People's Republic of China
| | - Yao Zhang
- College of Chemistry, Liaoning University, Shenyang, 110036, People's Republic of China; Chemistry and Chemical Engineering Guangdong Laboratory, Shantou, 515031, People's Republic of China.
| | - Lixin Xia
- College of Chemistry, Liaoning University, Shenyang, 110036, People's Republic of China.
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Xie KX, Huo RP, Song XL, Liu QL, Jiang Y, Li YH, Dong LL, Cheng JX. Fluorescence enhancement of surface plasmon coupled emission by Au nanobipyramids and its modulation effect on multi-wavelength radiation. Anal Chim Acta 2023; 1271:341460. [PMID: 37328245 DOI: 10.1016/j.aca.2023.341460] [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] [Revised: 05/10/2023] [Accepted: 05/30/2023] [Indexed: 06/18/2023]
Abstract
Surface plasmon coupled emission (SPCE), a novel surface-enhanced fluorescence technique, can generate directional and amplified radiation by the intense interaction between fluorophores and surface plasmons (SPs) of metallic nanofilms. For plasmon-based optical systems, the strong interaction between localized and propagating SPs and "hot spot" structures show great potential to significantly improve the electromagnetic (EM) field and modulate optical properties. Au nanobipyramids (NBPs) with two sharp apexes to enhance and restrict the EM field were introduced through electrostatic adsorption to achieve a mediated fluorescence system, and the emission signal enhancement was realized by factors over 60 compared with the normal SPCE. It has been demonstrated that the intense EM field produced by the NBPs assembly is what triggered the unique enhancement of SPCE by Au NBPs, which effectively overcomes the inherent signal quenching of SPCE for ultrathin sample detection. This remarkable enhanced strategy offers the chance to improve the detection sensitivity for plasmon-based biosensing and detection systems, and expand the range of applications for SPCE in bioimaging with more comprehensive and detailed information acquisition. The enhancement efficiency for various emission wavelengths was investigated in light of the wavelength resolution of SPCE, and it was discovered that enhanced emission for multi-wavelength could be successfully detected through the different emission angles due to the angular displacement caused by wavelength change. Benefit from this, the Au NBP modulated SPCE system was employed for multi-wavelength simultaneous enhancement detection under a single collection angle, which could broaden the application of SPCE in simultaneous sensing and imaging for multi-analytes, and expected to be used for high throughput detection of multi-component analysis.
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Affiliation(s)
- Kai-Xin Xie
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong, 030619, China.
| | - Rui-Ping Huo
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong, 030619, China
| | - Xiu-Li Song
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong, 030619, China
| | - Qiao-Ling Liu
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong, 030619, China
| | - Yue Jiang
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong, 030619, China
| | - Yu-Han Li
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong, 030619, China
| | - Lu-Lu Dong
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong, 030619, China
| | - Jia-Xin Cheng
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong, 030619, China
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Singh Y, Parmar R, Srivastava A, Yadav R, Kumar K, Rani S, Srivastava SK, Husale S, Sharma M, Kushvaha SS, Singh VN. Highly Responsive Near-Infrared Si/Sb 2Se 3 Photodetector via Surface Engineering of Silicon. ACS Appl Mater Interfaces 2023. [PMID: 37326513 DOI: 10.1021/acsami.3c04043] [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: 06/17/2023]
Abstract
The development of imaging technology and optical communication demands a photodetector with high responsiveness. As demonstrated by microfabrication and nanofabrication technology advancements, recent progress in plasmonic sensor technologies can address this need. However, these photodetectors have low optical absorption and ineffective charge carrier transport efficiency. Sb2Se3 is light-sensitive material with a high absorption coefficient, making it suitable for photodetector applications. We developed an efficient, scalable, low-cost near-infrared (NIR) photodetector based on a nanostructured Sb2Se3 film deposited on p-type micropyramidal Si (made via the wet chemical etching process), working on photoconductive phenomena. Our results proved that, at the optimized thickness of the Sb2Se3 layer, the proposed Si micropyramidal substrate enhanced the responsivity nearly two times, compared with that of the Sb2Se3 deposited on a flat Si reference sample and a glass/Sb2Se3 sample at 1064 nm (power density = 15 mW/cm2). More interestingly, the micropyramidal silicon-based device worked at 0 V bias, paving a path for self-bias devices. The highest specific detectivity of 2.25 × 1015 Jones was achieved at 15 mW/cm2 power density at a bias voltage of 0.5 V. It is demonstrated that the enhanced responsivity was closely linked with field enhancement due to the Kretschmann configuration of Si pyramids, which acts as hot spots for Si/Sb2Se3 junction. A high responsivity of 47.8 A W-1 proved it suitable for scalable and cost-effective plasmonic-based NIR photodetectors.
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Affiliation(s)
- Yogesh Singh
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
- CSIR-National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi, 110012, India
| | - Rahul Parmar
- Elettra Sincrotrone, s.s. 14 km 163,500 in Area Science Park, 34149, Basovizza Trieste Italy
| | - Avritti Srivastava
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
- CSIR-National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi, 110012, India
| | - Reena Yadav
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
- CSIR-National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi, 110012, India
| | - Kapil Kumar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
- CSIR-National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi, 110012, India
| | - Sanju Rani
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
- CSIR-National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi, 110012, India
| | - Sanjay K Srivastava
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
- CSIR-National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi, 110012, India
| | - Sudhir Husale
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
- CSIR-National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi, 110012, India
| | - Mahesh Sharma
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
- CSIR-National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi, 110012, India
| | - Sunil Singh Kushvaha
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
- CSIR-National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi, 110012, India
| | - Vidya Nand Singh
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
- CSIR-National Physical Laboratory, Dr. K.S. Krishnan Road, New Delhi, 110012, India
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Koushki E, Mowlavi AA, Hoseini ST. Application of Localized Surface Plasmon Resonance of Conjugated Gold Nanoparticles in Spectral Diagnosis of SARS-CoV-2: A Numerical Study. Plasmonics 2023:1-9. [PMID: 37360050 PMCID: PMC10257185 DOI: 10.1007/s11468-023-01901-1] [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: 04/05/2023] [Accepted: 05/30/2023] [Indexed: 06/28/2023]
Abstract
Severe respiratory syndrome COVID-19 (SARS-CoV-2) outbreak has became the most important global health issue, and simultaneous efforts to fast and low-cost diagnosis of this virus were performed by researchers. One of the most usual tests was colorimetric methods based on the change of color of gold nanoparticles in the presence of viral antibodies, antigens, and other biological agents. This spectral change can be due to the aggregation of the particles or the shift of localized surface plasmon resonance due to the electrical interactions of surface agents. It is known that surface agents could easily shift the absorption peak of metallic nanocolloids which is attributed to the localized surface plasmon resonance. Experimental diagnosis assays for colorimetric detection of SARS-CoV-2 using Au NPs were reviewed, and the shift of absorption peak was studied from the viewpoint of numerical analysis. Using the numerical method, the refractive index and real and imaginary parts of the effective relative permittivity of the viral biological shell around Au NPs were obtained. This model gives a quantitative description of colorimetric assays of the detection of SARS-CoV-2 using Au NPs.
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Affiliation(s)
- Ehsan Koushki
- Department of Physics, Faculty of Science, Hakim Sabzevari University, Sabzevar, 96179-76487 Iran
| | - Ali Asghar Mowlavi
- Department of Physics, Faculty of Science, Hakim Sabzevari University, Sabzevar, 96179-76487 Iran
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Lee TS, Sun CK. Effect of surface plasmon on optical detection of picosecond ultrasonic pulses generated in aluminum nanofilms. Photoacoustics 2023; 31:100509. [PMID: 37214430 PMCID: PMC10199418 DOI: 10.1016/j.pacs.2023.100509] [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] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 05/08/2023] [Accepted: 05/09/2023] [Indexed: 05/24/2023]
Abstract
Photoacoustic and thermoacoustic detection methods, including picosecond ultrasonic laser sonar based on metallic thin films, are widely used in industrial applications for their noninvasiveness. Herein, we present our findings on the phase advance effect of laser-induced picosecond ultrasonic signals in surface plasmon detection in Al nanofilms. Al has been extensively studied as a promising surface plasmon material in the ultraviolet region. Reflection time-resolved spectroscopy was integrated with a Kretschmann configuration to study the optical detection mechanisms with and without meeting the surface plasmon phase-matching condition. Through a comparison of the phase changes in picosecond ultrasonic pulses at different optical detection angles, we attributed the observed phase delay modification to the displacement of the detection region under the surface plasmon phase-matching condition.
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Affiliation(s)
- Ting-Shan Lee
- Department of Electrical Engineering and Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei 10617, Taiwan
| | - Chi-Kuang Sun
- Department of Electrical Engineering and Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei 10617, Taiwan
- Research Center for Applied Sciences, Academia Sinica, 128 Academia Road, Section 2, Nankang, Taipei 11529, Taiwan
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Dai X, Wu L, Yu L, Yu Z, Ma F, Zhang Y, Yang Y, Sun J, Lu M. Sub-bandgap near-infrared photovoltaic response in Au/Al 2O 3/n-Si metal-insulator-semiconductor structure by plasmon-enhanced internal photoemission. Nanoscale Res Lett 2023; 18:33. [PMID: 36881340 DOI: 10.1186/s11671-023-03818-4] [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] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 03/02/2023] [Indexed: 05/24/2023]
Abstract
Silicon sub-bandgap near-infrared (NIR) (λ > 1100 nm) photovoltaic (PV) response by plasmon-enhanced internal photoemission was investigated. The Si sub-bandgap NIR PV response, which remains unexploited in Schottky junction-like solar cell device, was examined using nanometer sized Au/Al2O3/n-Si junction arrays. This kind of metal-insulator-semiconductor structure was similar in functionality to Schottky junction in NIR absorption, photo-induced charge separation and collection. It showed that NIR absorption increased steadily with increasing volume of Au nanoparticles (NPs) till a saturation was reached. Simulation results indicated the formation of localized surface plasmon on the surfaces of Au NPs, which was correlated well with the observed NIR absorption. On the other hand, the NIR PV response was found sensitive to the amount and size of Au NPs and thickness of Al2O3. Chemical and field-effect passivation of n-Si by using Al2O3 and SiO2 were used to optimize the NIR PV response. In the current configuration, the best PV conversion efficiency was 0.034% at λ = 1319 nm under illumination power of 0.1 W/cm2.
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Affiliation(s)
- Xiyuan Dai
- Department of Optical Science and Engineering, and Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai, 200433, China
| | - Li Wu
- Department of Optical Science and Engineering, and Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai, 200433, China
| | - Liang Yu
- Department of Optical Science and Engineering, and Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai, 200433, China
| | - Zhiyuan Yu
- Department of Optical Science and Engineering, and Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai, 200433, China
| | - Fengyang Ma
- Department of Optical Science and Engineering, and Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai, 200433, China
| | - Yuchen Zhang
- Department of Optical Science and Engineering, and Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai, 200433, China
| | - Yanru Yang
- Department of Optical Science and Engineering, and Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai, 200433, China
| | - Jian Sun
- Department of Optical Science and Engineering, and Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai, 200433, China.
- Yiwu Research Institute of Fudan University, Yiwu, 322000, Zhejiang, China.
| | - Ming Lu
- Department of Optical Science and Engineering, and Shanghai Ultra-Precision Optical Manufacturing Engineering Center, Fudan University, Shanghai, 200433, China.
- Yiwu Research Institute of Fudan University, Yiwu, 322000, Zhejiang, China.
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Guan M, Wang J, Wang K, Wang J, Devasenathipathy R, He S, Yu L, Zhang L, Xie H, Li Z, Lu G. Selective adsorption of cysteamine molecules on Au/TiO 2 boosts visible light-driven photocatalytic hydrogen evolution. J Colloid Interface Sci 2023; 633:1033-1041. [PMID: 36516679 DOI: 10.1016/j.jcis.2022.12.011] [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: 07/22/2022] [Revised: 11/24/2022] [Accepted: 12/04/2022] [Indexed: 12/13/2022]
Abstract
Photocatalytic evolution of hydrogen is becoming a research hotspot because it can help to produce clean energy and reduce environmental pollution. Titanium dioxide (TiO2) and its composites are photocatalysts that are widely used in hydrogen evolution because of their high abundance in nature, low price, and high photo/chemical stability. However, their catalytic performances still need to be further improved, particularly in the visible light spectrum. Herein, visible light-driven photocatalytic evolution of hydrogen on Au/TiO2 nanocomposite is enhanced ∼ 10 folds by selectively functionalizing the nanocomposite with cysteamine molecules. It is revealed that the amine group (-NH2) in cysteamine favors the transfer and separation of photo-generated hot carriers. The rate of hydrogen produced can be further tuned by varying the ionization of the functionalized molecules at different pH values. This work provides a simple, convenient, and effective method that can be used to improve the photocatalytic evolution of hydrogen. This method can also be used for many other nanocatalysts (e.g., Au-MoS2, Au-BiVO4) and catalytic reactions (e.g., carbon dioxide reduction, nitrogen reduction).
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Affiliation(s)
- Mengdan Guan
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Jin Wang
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Kaili Wang
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Junjie Wang
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Rajkumar Devasenathipathy
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Shunhao He
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Liuyingzi Yu
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Linrong Zhang
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Haijiao Xie
- Hangzhou Yanqu Information Technology Co., Ltd., Y2, 2nd Floor, Building 2, Xixi Legu Creative Pioneering Park, No. 712 Wen'er West Road, Xihu District, Hangzhou 310003, PR China
| | - Zhuoyao Li
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China.
| | - Gang Lu
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China; National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, PR China.
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Toma K, Satomura Y, Iitani K, Arakawa T, Mitsubayashi K. Long-range surface plasmon aptasensor for label-free monitoring of vancomycin. Biosens Bioelectron 2023; 222:114959. [PMID: 36502716 DOI: 10.1016/j.bios.2022.114959] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 11/20/2022] [Accepted: 11/25/2022] [Indexed: 11/29/2022]
Abstract
Vancomycin (VCM) causes poisoning symptoms at high concentrations; thus, therapeutic drug monitoring is recommended to measure and control blood levels regularly. However, blood analysis at regular intervals does not allow knowing the detailed temporal change in concentration. To address this challenge, we developed a long-range surface plasmon (LRSP) aptasensor for measuring VCM label-free and real-time by combining a sensitive LRSP sensor and a peptide aptamer with a VCM recognition site. First, three different biosensors for VCM were compared. One was prepared by immobilizing the peptide aptamer directly on (Direct-Apt) or via a self-assembled monolayer (SAM) on a gold surface (SAM-Apt). The other used anti-VCM antibodies immobilized on a gold surface via the SAM (SAM-Ab). The Direct-Apt showed larger sensor output to VCM than the other biosensors. The dynamic range for VCM was 0.78-100 μM, including the therapeutic range (6.9-13.8 μM). The Direct-Apt also showed the sensor output only from VCM among four different antibiotics, demonstrating the high selectivity for VCM. The VCM captured by the aptamer could be removed by rinsing with phosphate-buffered saline. The measurement was rapid, with 72- and 77-sec response and recovery times, allowing not only repeated but also real-time measurements. Finally, the Direct-Apt in 20% serum solutions showed comparable sensitivity to VCM in the buffer solution, indicating high capability for real-sample.
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Affiliation(s)
- Koji Toma
- Department of Biomedical Devices and Instrumentation, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-0062, Japan; Department of Electronic Engineering, Shibaura Institute of Technology, 3-7-5 Toyosu, Koto-ku, Tokyo, 135-8548, Japan
| | - Yui Satomura
- Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Kenta Iitani
- Department of Biomedical Devices and Instrumentation, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Takahiro Arakawa
- Department of Electric and Electronic Engineering, Tokyo University of Technology, 1404-1 Katakura, Hachioji City, Tokyo, 192-0982, Japan
| | - Kohji Mitsubayashi
- Department of Biomedical Devices and Instrumentation, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-0062, Japan; Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan.
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11
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Wang X, Zhang Y, Zhao C, Sun S, Xu M, Zhang L, Wang P, Fang Y. Encrypted information reading technology at the micro/nano scale based on surface plasma-driven reactions. Spectrochim Acta A Mol Biomol Spectrosc 2022; 281:121607. [PMID: 35841859 DOI: 10.1016/j.saa.2022.121607] [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: 05/23/2022] [Revised: 07/04/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
The plasma exciton induced photocatalytic reaction has considerable potential in terms of controllability and selectivity. In this paper, with the advantage of Raman fingerprinting, the localized photocatalytic reaction driven by surface plasmons is realized by the writing and reading process of encrypted information at the micro/nano scale. A layer of probe molecules (4-nitrobenzenethiol, 4-NBT) was assembled on a gold nanoporous array grown on porous anodic aluminium oxide (AAO) membranes. The focused Raman spot is manipulated in a two-dimensional micro/nano manipulation technique to control the movement of the spot at an excitation wavelength of 633 nm. Probe molecules within the spot trajectory will undergo a photocatalytic reaction to produce p,p'-dimercaptoazobenzene (DMAB) molecules, thereby writing the specific information required. The use of Raman mapping to image the characteristic peaks of formed DMAB under excitation light with a longer wavelength of 785 nm enables the readout of 2D micro/nano cryptograms. Combined with finite-difference time-domain (FDTD) simulations, it was found that the presence of a large number of regularly arranged hot spots on the surface of the array is the key to achieving the efficient photocatalytic reaction. This study enables real-time, lossless recording/reading of encrypted information with the aid of 2D Raman technology. This would be a very interesting research area with broad application in confidential information storage.
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Affiliation(s)
- Xueyan Wang
- The Beijing Key Laboratory for Nano-Photonics and Nano-Structure, Department of Physics, Capital Normal University, Beijing 100048, China
| | - Yiyuan Zhang
- The Beijing Key Laboratory for Nano-Photonics and Nano-Structure, Department of Physics, Capital Normal University, Beijing 100048, China
| | - Chengpeng Zhao
- The Beijing Key Laboratory for Nano-Photonics and Nano-Structure, Department of Physics, Capital Normal University, Beijing 100048, China
| | - Shipeng Sun
- The Beijing Key Laboratory for Nano-Photonics and Nano-Structure, Department of Physics, Capital Normal University, Beijing 100048, China
| | - Mengqi Xu
- The Beijing Key Laboratory for Nano-Photonics and Nano-Structure, Department of Physics, Capital Normal University, Beijing 100048, China
| | - Lisheng Zhang
- The Beijing Key Laboratory for Nano-Photonics and Nano-Structure, Department of Physics, Capital Normal University, Beijing 100048, China.
| | - Peijie Wang
- The Beijing Key Laboratory for Nano-Photonics and Nano-Structure, Department of Physics, Capital Normal University, Beijing 100048, China
| | - Yan Fang
- The Beijing Key Laboratory for Nano-Photonics and Nano-Structure, Department of Physics, Capital Normal University, Beijing 100048, China
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12
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Zhang X, Xie X, Zhang L, Yao K, Huang Y. Optoplasmonic MOFs film for SERS detection. Spectrochim Acta A Mol Biomol Spectrosc 2022; 278:121362. [PMID: 35576840 DOI: 10.1016/j.saa.2022.121362] [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: 03/25/2022] [Revised: 04/27/2022] [Accepted: 05/05/2022] [Indexed: 06/15/2023]
Abstract
Optoplasmonic hybrid structures composed of photonic and plasmonic elements with excellent optical properties are of great significance for the development of surface-enhanced Raman spectroscopy (SERS) substrates. In this work, the optoplasmonic hybrid structure is composed of SiO2 microsphere and two-dimensional (2D) plasmonic- metal organic frameworks (MOF) film. Among them, the 2D plasmonic-MOF film is prepared from silver nanoparticles encapsulated by zeolitic imidazole acid framework (AgNP@ZIF-8) by self-assembly method. This optoplasmonic hybrid structure with gas adsorption properties could be used as a SERS substrate for 4-Mercaptophenol (4-MP) gas detection. Experimental data show that this substrate is dependent on the thickness of the ZIF shell and the size of the SiO2 microspheres. In addition, it is confirmed by the electromagnetic field simulation of finite-difference time-domain method (FDTD). The optoplasmonic hybrid microstructures exhibit good uniformity for detection of 4-MP gas molecules. This work not only broadens the understanding of our optoplasmonic hybrid structure, but also has broad application prospects in SERS and gas sensing related fields.
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Affiliation(s)
- Xin Zhang
- Chongqing Industry Polytechnic College, Chongqing 401120, China
| | - Xin Xie
- College of Physics, Chongqing University, Chongqing 400044, China.
| | - Lingjun Zhang
- College of Physics, Chongqing University, Chongqing 400044, China
| | - Kaibin Yao
- College of Physics, Chongqing University, Chongqing 400044, China
| | - Yingzhou Huang
- Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, Chongqing University, Chongqing 400044, China.
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13
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Xie Y, Yang L, Du J, Li Z. Giant Enhancement of Second-Harmonic Generation in Hybrid Metasurface Coupled MoS 2 with Fano-Resonance Effect. Nanoscale Res Lett 2022; 17:97. [PMID: 36194308 PMCID: PMC9532486 DOI: 10.1186/s11671-022-03736-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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Accepted: 09/23/2022] [Indexed: 06/16/2023]
Abstract
Plasmonic nanostructures have been regarded as potential candidates for boosting the nonlinear up-conversion rate at the nanoscale level due to their strong near-field enhancement and inherent high design freedom. Here, we design a hybrid metasurface to realize the moderate interaction of Fano resonance and create the dual-resonant mode-matching condition to facilitate the nonlinear process of second harmonic generation (SHG). The hybrid metasurface presents dipolar and octupolar plasmonic modes near the fundamental and doubled-frequency wavelengths, respectively, further utilized to enhance the SHG of low-dimensional MoS2 semiconductors. The maximum intensity of SHG in hybrid metasurface coupled MoS2 is more than ten thousand times larger than that of other structure-units coupled MoS2. The conversion efficiency is reported to be as high as 3.27 × 10-7. This work paves the way to optimize nonlinear light-matter interactions in low-dimensional structures coupled with semiconductors.
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Affiliation(s)
- Yunfei Xie
- College of Materials Science and Engineering, Hunan University, Changsha, 410082, Hunan, People's Republic of China
| | - Liuli Yang
- College of Materials Science and Engineering, Hunan University, Changsha, 410082, Hunan, People's Republic of China
| | - Juan Du
- State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai, 201800, People's Republic of China
- School of Physics and Electronics, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Ziwei Li
- College of Materials Science and Engineering, Hunan University, Changsha, 410082, Hunan, People's Republic of China.
- State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai, 201800, People's Republic of China.
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14
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Lai YS, Chen YL, Lin CC, Su YH. Ultrafast chiral peptides purification via surface plasmon enhanced spin selectivity. Biosens Bioelectron 2022; 211:114339. [PMID: 35588636 DOI: 10.1016/j.bios.2022.114339] [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: 03/15/2022] [Accepted: 05/02/2022] [Indexed: 11/17/2022]
Abstract
By D-arginine and L-arginine chiral peptides induced spin selectivity and Au NPs enhanced spin polarization, chiral peptides purification has been effectively simplified and the purification performance has raised from a mixture system. The angular momentums of light are operated by the polarizer and wave plates. Au NPs decorated ZnO nanorods electrodes are utilized to modulate the polarization of spintronic. Seed growth methods are for synthesizing spherical Au NPs. UV light reduction methods are for urchin-liked Au NPs. Au NPs are decorated on ZnO nanorods electrodes for rising photon to electron conversion efficiency and enhancing spin polarization rates by surface plasmon effect. From our results, photon to the electron conversion efficiency of ZnO nanorods electrodes has effectively enhanced by urchin-liked Au NPs decorating. Ultrahigh localized plasmon conversion efficiency as high as 60% was also obtained. Besides, density functional theory (DFT) calculations simulated the force on spintronic. Since the D-arginine and L-arginine are on Au substrate, DFT results demonstrate different angular momentum and spin polarization coupling. Along with urchin-liked Au NPs rising chiral induced spin polarization by surface plasmon resonance, the sensitivity of chiral arginine has been raised around 5000% from bare ZnO nanorods electrodes. The purification and separation time of a specific chiral arginine only needs 5 min.
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Affiliation(s)
- Yi-Sheng Lai
- Department of Material Science and Engineering, National Cheng Kung University, Taiwan
| | - Yu-Lin Chen
- Department of Material Science and Engineering, National Cheng Kung University, Taiwan
| | - Chia-Chun Lin
- Department of Material Science and Engineering, National Cheng Kung University, Taiwan
| | - Yen-Hsun Su
- Department of Material Science and Engineering, National Cheng Kung University, Taiwan.
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15
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Fu X, Sun Z, Ji S, Liu F, Feng M, Yoo BK, Zhu Y. Nanoscale-Femtosecond Imaging of Evanescent Surface Plasmons on Silver Film by Photon-Induced Near-Field Electron Microscopy. Nano Lett 2022; 22:2009-2015. [PMID: 35226510 DOI: 10.1021/acs.nanolett.1c04774] [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] [Indexed: 06/14/2023]
Abstract
Surface plasmons on silver nanostructures have a broad range of tunable resonance properties in visible and near-infrared regimes, which possess wide applications in nanophotonics and optoelectronics. Here we use a femtosecond laser to excite surface plasmons on a silver film and trace the subsequent transient dynamics via photon-induced near-field electron microscopy (PINEM). A polarization experiment of PINEM demonstrates a conspicuous polarization dependence of the transient surface plasmon field on the silver film; however, unlike silver nanowires and nanorods, there is no polarization dependence for the PINEM intensity. This compelling finding suggests a thin film platform can be more easily used to identify the temporal and spatial overlaps between the pump laser and probe electron pulses in 4D ultrafast electron microscopy (UEM). Our work illustrates the femtosecond excitation and transient behavior of the surface plasmons on silver film and paves a universal, simple way for identifying the time zero in 4D UEM.
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Affiliation(s)
- Xuewen Fu
- Ultrafast Electron Microscopy Laboratory, The MOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai University, Tianjin 300071, China
| | - Zepeng Sun
- Ultrafast Electron Microscopy Laboratory, The MOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai University, Tianjin 300071, China
| | - Shaozheng Ji
- Ultrafast Electron Microscopy Laboratory, The MOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai University, Tianjin 300071, China
| | - Fang Liu
- Ultrafast Electron Microscopy Laboratory, The MOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai University, Tianjin 300071, China
| | - Min Feng
- Ultrafast Electron Microscopy Laboratory, The MOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai University, Tianjin 300071, China
| | - Byung-Kuk Yoo
- Physical Biology Center for Ultrafast Science and Technology, Arthur Amos Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, California 91125, United States
| | - Yimei Zhu
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, United States
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16
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Hou S, Wang J, Wang C, Yuan Y, Zhang X, Huang Y, Yan S. Sandwich optoplasmonic hybrid structure for surface enhanced Raman spectroscopy. Spectrochim Acta A Mol Biomol Spectrosc 2022; 264:120252. [PMID: 34411768 DOI: 10.1016/j.saa.2021.120252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 05/23/2021] [Revised: 07/20/2021] [Accepted: 08/02/2021] [Indexed: 06/13/2023]
Abstract
Combined with photonic microstructure and plasmonic nanostructure, the optoplasmonic hybrid structure with fantastic optical properties attracts lots of attentions in recent years. With the help of light enrichment by dielectric photonic microenvironment, the embedded plasmonic nanoantennas generate much greater electromagnetic field enhancement at surface for light harvesting compared to conventional plasmonic nanostructures. In this work, a sandwich optoplasmonic hybrid structure is developed for surface enhanced Raman spectroscopy (SERS) detection, which is consisted of polymethyl methacrylate (PMMA) microspheres array, self-assembled Ag nanoparticles (AgNPs) film and SiO2 microsphere (PMMA@AgNPs@SiO2). The SERS spectra collected on this optoplasmonic substrate point out it has high sensitivity with limit of detection (LOD) at 10 fM. The experimental data demonstrate both the PMMA microarray and SiO2 microsphere play important roles in enrichment of light illuminating at AgNPs for SERS detection, which is confirmed by the simulated electric field distributions. This sandwich optoplasmonic hybrid structure not only enlarges research field of surface plasmon, but also provides a novel SERS subtract for sensitive analysis in chem/bio-field.
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Affiliation(s)
- Suxia Hou
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing Key ZLaboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing 400044, China
| | - Jihao Wang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing Key ZLaboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing 400044, China
| | - Chenyang Wang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing Key ZLaboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing 400044, China
| | - Yuan Yuan
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing Key ZLaboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing 400044, China; Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | - Xin Zhang
- Chongqing Industry Polytechnic College, Chongqing 400044, China
| | - Yingzhou Huang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing Key ZLaboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing 400044, China.
| | - Sheng Yan
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China.
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17
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Verma SK, Srivastava SK. Giant Extra-Ordinary Near Infrared Transmission from Seemingly Opaque Plasmonic Metasurface: Sensing Applications. Plasmonics 2021; 17:653-663. [PMID: 34690613 PMCID: PMC8526055 DOI: 10.1007/s11468-021-01551-1] [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: 07/03/2021] [Accepted: 09/27/2021] [Indexed: 06/13/2023]
Abstract
In the present study, we report giant extra-ordinary transmission of near infrared (NIR) light, more than 90%, through a seemingly opaque plasmonic metasurface, which consists of two metal nano-slits arrays (MNSAs) with alternate opening arrangements. By using perfect coupling of the plasmonic modes formed between the sharp edges of the upper and lower MNSAs of silver, a giant, wavelength selective transmission could be obtained. The study is accompanied by optimization of electromagnetic (EM) field coupling for different interlayer spacings and lateral overlap between the two MNSAs to understand their significance in light transmission through the metasurface. The interlayer spacing between the MNSAs works as the transmitting channel for light. The optimization of performance with different fill factors and plasmonic metals was performed as well. Because of the excitation of extended surface plasmons (ESPs) generated at both the MNSAs, the metasurface can be used for refractive index (RI) sensing as one of its applications by using a transparent and flexible polymer, such as polydimethylsiloxane (PDMS), as substrate. The maximum sensitivity which could be achieved for the optimal configuration of the metasurface was 1435.71 nm/RIU, with a figure of merit (FOM) of 80 RIU-1 for 90.45% optical transmission of light for the refractive index variation of analyte medium from 1.33 to 1.38 RIU. The present study strengthens the concept of light funneling through subwavelength structures due to plasmons, which are responsible for light transmission through this seemingly opaque metasurface and finds use in highly sensitive, flexible, and cost-effective EOT-based sensors.
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Affiliation(s)
- Sagar Kumar Verma
- Department of Physics, Indian Institute of Technology Roorkee, Roorkee, Haridwar, Uttarakhand 247667 India
| | - Sachin K. Srivastava
- Department of Physics, Indian Institute of Technology Roorkee, Roorkee, Haridwar, Uttarakhand 247667 India
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18
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Dawi EA, Karar AA, Mustafa E, Nur O. Plasmon-Enhanced Light Absorption in (p-i-n) Junction GaAs Nanowire Solar Cells: An FDTD Simulation Method Study. Nanoscale Res Lett 2021; 16:149. [PMID: 34542730 PMCID: PMC8452811 DOI: 10.1186/s11671-021-03603-1] [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: 07/06/2021] [Accepted: 09/12/2021] [Indexed: 06/13/2023]
Abstract
A finite-difference time-domain method is developed for studying the plasmon enhancement of light absorption from vertically aligned GaAs nanowire arrays decorated with Au nanoparticles. Vertically aligned GaAs nanowires with a length of 1 µm, a diameter of 100 nm and a periodicity of 165-500 nm are functionalized with Au nanoparticles with a diameter between 30 and 60 nm decorated in the sidewall of the nanowires. The results show that the metal nanoparticles can improve the absorption efficiency through their plasmonic resonances, most significantly within the near-bandgap edge of GaAs. By optimizing the nanoparticle parameters, an absorption enhancement of almost 35% at 800 nm wavelength is achieved. The latter increases the chance of generating more electron-hole pairs, which leads to an increase in the overall efficiency of the solar cell. The proposed structure emerges as a promising material combination for high-efficiency solar cells.
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Affiliation(s)
- E. A. Dawi
- Nonlinear Dynamics Research Centre (NDRC), Ajman University, P.O. Box 346, Ajman, United Arab Emirates
| | - A. A. Karar
- Edith Cowan University, 270 Joondalup Drive, Joondalup, WA 6027 Australia
| | - E. Mustafa
- Department of Science and Technology (ITN), Linköping University, Campus Norrköping, 601 74 Norrköping, Sweden
| | - O. Nur
- Department of Science and Technology (ITN), Linköping University, Campus Norrköping, 601 74 Norrköping, Sweden
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19
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Ju L, Shi J, Liu C, Huang Y, Sun X. Optoplasmonic film for SERS. Spectrochim Acta A Mol Biomol Spectrosc 2021; 255:119698. [PMID: 33773433 DOI: 10.1016/j.saa.2021.119698] [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: 11/30/2020] [Revised: 02/19/2021] [Accepted: 03/08/2021] [Indexed: 06/12/2023]
Abstract
Combining plasmonic and photonic elements, optoplasmonic hybrid structure exhibits excellent optical properties beyond conventional plasmonic or photonic structures. In this work, the optoplasmonic film consists of SiO2 microsphere and Au film without any nanostructures is investigated. With the help of a microsphere, the intensity of surface enhanced Raman spectroscopy (SERS) on Au film is highly enhanced (~1000 times) compared to bare Au film. The simulated electromagnetic field points out the enhancement caused by the optical lens effect of SiO2 microsphere that high light intensity is generated under the microsphere to excite surface plasmon on Au film. Furthermore, our data demonstrates the microsphere lens enhancement is greatly influenced by the size of the SiO2 microsphere and wavelength of incident light. This interesting film with a simple configuration could overcome the challenges in the fabrication and store process induced by nanostructures, which play an important role in SERS application. Our work not only enlarges the knowledge of the optoplasmonic hybrid structure, but also exhibits excellent application prospective in light harvest field e.g. enhanced spectrum, photocatalysis, optothermal effect, and hot electron generation, etc.
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Affiliation(s)
- Lili Ju
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing 400044, China
| | - Jialing Shi
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing 400044, China
| | - Chuanyu Liu
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing 400044, China
| | - Yingzhou Huang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing 400044, China.
| | - Xiaonan Sun
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing 400044, China.
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20
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Wang Y, Zeng S, Crunteanu A, Xie Z, Humbert G, Ma L, Wei Y, Brunel A, Bessette B, Orlianges JC, Lalloué F, Schmidt OG, Yu N, Ho HP. Targeted Sub-Attomole Cancer Biomarker Detection Based on Phase Singularity 2D Nanomaterial-Enhanced Plasmonic Biosensor. Nanomicro Lett 2021; 13:96. [PMID: 34138312 PMCID: PMC7985234 DOI: 10.1007/s40820-021-00613-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 01/23/2021] [Indexed: 05/24/2023]
Abstract
A zero-reflection-induced phase singularity is achieved through precisely controlling the resonance characteristics using two-dimensional nanomaterials. An atomically thin nano-layer having a high absorption coefficient is exploited to enhance the zero-reflection dip, which has led to the subsequent phase singularity and thus a giant lateral position shift. We have improved the detection limit of low molecular weight molecules by more than three orders of magnitude compared to current state-of-art nanomaterial-enhanced plasmonic sensors. Detection of small cancer biomarkers with low molecular weight and a low concentration range has always been challenging yet urgent in many clinical applications such as diagnosing early-stage cancer, monitoring treatment and detecting relapse. Here, a highly enhanced plasmonic biosensor that can overcome this challenge is developed using atomically thin two-dimensional phase change nanomaterial. By precisely engineering the configuration with atomically thin materials, the phase singularity has been successfully achieved with a significantly enhanced lateral position shift effect. Based on our knowledge, it is the first experimental demonstration of a lateral position signal change > 340 μm at a sensing interface from all optical techniques. With this enhanced plasmonic effect, the detection limit has been experimentally demonstrated to be 10-15 mol L-1 for TNF-α cancer marker, which has been found in various human diseases including inflammatory diseases and different kinds of cancer. The as-reported novel integration of atomically thin Ge2Sb2Te5 with plasmonic substrate, which results in a phase singularity and thus a giant lateral position shift, enables the detection of cancer markers with low molecular weight at femtomolar level. These results will definitely hold promising potential in biomedical application and clinical diagnostics.
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Affiliation(s)
- Yuye Wang
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, People's Republic of China
- CNRS, XLIM Research Institute, UMR 7252, University of Limoges, 123, Avenue Albert Thomas, Limoges, France
| | - Shuwen Zeng
- CNRS, XLIM Research Institute, UMR 7252, University of Limoges, 123, Avenue Albert Thomas, Limoges, France.
- Department of Applied Physics and Applied Mathematics, Columbia University, New York City, NY, USA.
| | - Aurelian Crunteanu
- CNRS, XLIM Research Institute, UMR 7252, University of Limoges, 123, Avenue Albert Thomas, Limoges, France
| | - Zhenming Xie
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, People's Republic of China
| | - Georges Humbert
- CNRS, XLIM Research Institute, UMR 7252, University of Limoges, 123, Avenue Albert Thomas, Limoges, France
| | - Libo Ma
- Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstr. 20, Dresden, Germany
| | - Yuanyuan Wei
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, People's Republic of China
| | - Aude Brunel
- Faculty of Medicine, University of Limoges, EA3842-CAPTuR, GEIST, 2 rue du Dr Marcland, Limoges, France
| | - Barbara Bessette
- Faculty of Medicine, University of Limoges, EA3842-CAPTuR, GEIST, 2 rue du Dr Marcland, Limoges, France
| | - Jean-Christophe Orlianges
- CNRS, XLIM Research Institute, UMR 7252, University of Limoges, 123, Avenue Albert Thomas, Limoges, France
| | - Fabrice Lalloué
- Faculty of Medicine, University of Limoges, EA3842-CAPTuR, GEIST, 2 rue du Dr Marcland, Limoges, France
| | - Oliver G Schmidt
- Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstr. 20, Dresden, Germany
| | - Nanfang Yu
- Department of Applied Physics and Applied Mathematics, Columbia University, New York City, NY, USA
| | - Ho-Pui Ho
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, People's Republic of China.
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21
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Ullattil SG, Jabeen Fatima MJ, Abdel-Wahab A. Defect minimized Ag-ZnO microneedles for photocatalysis. Environ Sci Pollut Res Int 2020; 27:37036-37043. [PMID: 32577972 PMCID: PMC7456407 DOI: 10.1007/s11356-020-09433-5] [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] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 05/25/2020] [Indexed: 06/11/2023]
Abstract
A facile solution processing strategy has been developed for the formation of Ag-modified ZnO microneedles at various calcination temperatures such as 300, 500, and 700 °C (AZ3, AZ5, and AZ7 respectively). Due to the heavy doping of AgNO3, Ag+ ions have been incorporated in to the crystal lattice of ZnO in all the Ag-ZnO samples, which facilitated the formation of Ag-ZnO microneedle morphology with minimized defect states, and obviously, the plasmon peaks were observed due to Ag modification. These Ag-ZnO microneedle structures have been evaluated for their photocatalytic performance using methylene blue as model target contaminant and their activity was compared with the commercially available titania P25 photocatalyst. The photoactivity of all the Ag-ZnO microneedle structures was significantly higher than that of the commercially available P25 photocatalyst with the most active Ag-ZnO material having a photocatalytic activity ~ 1.4 times greater than that of P25 titania.
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Affiliation(s)
- Sanjay Gopal Ullattil
- Chemical Engineering Program, Texas A&M University at Qatar, 23874, Education City, Doha, Qatar.
| | - M J Jabeen Fatima
- Department of Nanoscience and Technology, University of Calicut, Malappuram, Kerala, 673635, India
| | - Ahmed Abdel-Wahab
- Chemical Engineering Program, Texas A&M University at Qatar, 23874, Education City, Doha, Qatar.
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22
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Cheng ZQ, Li ZW, Yao R, Xiong KW, Cheng GL, Zhou YH, Luo X, Liu ZM. Improved SERS Performance and Catalytic Activity of Dendritic Au/Ag Bimetallic Nanostructures Based on Ag Dendrites. Nanoscale Res Lett 2020; 15:117. [PMID: 32449120 PMCID: PMC7246272 DOI: 10.1186/s11671-020-03347-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 05/10/2020] [Indexed: 05/16/2023]
Abstract
Bimetallic nanomaterials, which exhibit a combination of the properties associated with two different metals, have enabled innovative applications in nanoscience and nanotechnology. Here, we introduce the fabrication of dendritic Au/Ag bimetallic nanostructures for surface-enhanced Raman scattering (SERS) and catalytic applications. The dendritic Au/Ag bimetallic nanostructures were prepared by combining the electrochemical deposition and replacement reaction. The formation of Au nanoparticle shell on the surface of Ag dendrites greatly improves the stability of dendritic nanostructures, followed by a significant SERS enhancement. In addition, these dendritic Au/Ag bimetallic nanostructures are extremely efficient in degrading 4-nitrophenol (4-NP) compared with the initial dendritic Ag nanostructures. These experimental results indicate the great potential of the dendritic Au/Ag bimetallic nanostructures for the development of excellent SERS substrate and highly efficient catalysts.
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Affiliation(s)
- Zi-Qiang Cheng
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
- Materials Interfaces Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055 People’s Republic of China
| | - Zhi-Wen Li
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Rui Yao
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Kuang-Wei Xiong
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Guang-Ling Cheng
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Yan-Hong Zhou
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Xin Luo
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Zhi-Min Liu
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
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23
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Yamini S, Gunaseelan M, Kumar GA, Singh S, Dannangoda GC, Martirosyan KS, Sardar DK, Sivakumar S, Girigoswami A, Senthilselvan J. NaGdF 4:Yb,Er-Ag nanowire hybrid nanocomposite for multifunctional upconversion emission, optical imaging, MRI and CT imaging applications. Mikrochim Acta 2020; 187:317. [PMID: 32385722 DOI: 10.1007/s00604-020-04285-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Accepted: 04/19/2020] [Indexed: 01/12/2023]
Abstract
The effect of novel silver nanowire encapsulated NaGdF4:Yb,Er hybrid nanocomposite on the upconversion emission and bioimaging properties has been investigated. The upconvension nanomaterials were synthesised by polyol method in the presence of ethylene glycol, PVP and ethylenediamine. The NaGdF4:Yb,Er-Ag hybrid was formed with upconverting NaGdF4:Yb,Er nanoparticles of size ~ 80 nm and silver nanowires of thickness ~ 30 nm. The surface plasmon induced by the silver ion in the NaGdF4:Yb,Er-Ag nanocomposite resulted an intense upconversion green emission at 520 nm and red emission at 660 nm by NIR diode laser excitation at 980 nm wavelength. The UV-Vis-NIR spectral absorption at 440 nm and 980 nm, the intense Raman vibrational modes and the strong upconversion emission results altogether confirm the localised surface plasmon resonance effect of silver ion in the hybrid nanocomposite. MRI study of both NaGdF4:Yb,Er nanoparticle and NaGdF4:Yb,Er-Ag nanocomposite revealed the T1 relaxivities of 22.13 and 10.39 mM-1 s-1, which are larger than the commercial Gd-DOTA contrast agent of 3.08 mM-1 s-1. CT imaging NaGdF4:Yb,Er-Ag and NaGdF4:Yb,Er respectively showed the values of 53.29 HU L/g and 39.51 HU L/g, which are higher than 25.78 HU L/g of the CT contrast agent Iobitridol. The NaGdF4:Yb,Er and NaGdF4:Yb,Er-Ag respectively demonstrated a negative zeta potential of 54 mV and 55 mV, that could be useful for biological application. The in vitro cytotoxicity of the NaGdF4:Yb,Er tested in HeLa and MCF-7 cancer cell line by MTT assay demonstrated a cell viability of 90 and 80 %, respectively. But, the cell viability of NaGdF4:Yb,Er-Ag slightly decreased to 80 and 78%. The confocal microscopy imaging showed that the UCNPs are effectively up-taken inside the nucleolus of the cancer cells, and it might be useful for NIR laser-assisted phototherapy for cancer treatment. Graphical abstract.
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24
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Liu H, Kang Y, Meng T, Tian C, Wei G. High Photon Absorptivity of Quantum Dot Infrared Photodetectors Achieved by the Surface Plasmon Effect of Metal Nanohole Array. Nanoscale Res Lett 2020; 15:98. [PMID: 32372245 PMCID: PMC7200969 DOI: 10.1186/s11671-020-03326-9] [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] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 04/16/2020] [Indexed: 06/11/2023]
Abstract
With the increasing demand for small-scale photodetector devices, quantum dot-based infrared photodetectors have attracted more and more attention in the past decades. In this work, periodic metal nanohole array structures are introduced to the quantum dot infrared photodetectors to enhance the photon absorptivity performance via the surface plasmon enhancement effect in order to overcome the bottleneck of low optical absorption efficiency that exists in conventional photodetectors. The results demonstrate that the optimized metal nanohole array structures can greatly enhance the photon absorptivity up to 86.47% in the specific photodetectors, which is 1.89 times than that of conventional photodetectors without the metal array structures. The large enhancement of the absorptivity can be attributed to the local coupling surface plasmon effect caused by the metal nanohole array structures. It is believed that the study can provide certain theoretical guidance for high-performance nanoscale quantum dot-based infrared photodetectors.
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Affiliation(s)
- Hongmei Liu
- Institute of Solid State Physics, Shanxi Datong University, Datong City, 037009 People’s Republic of China
- School of Physical Science and Electronics, Shanxi Datong University, Datong City, 037009 People’s Republic of China
| | - Yongqiang Kang
- School of Physical Science and Electronics, Shanxi Datong University, Datong City, 037009 People’s Republic of China
| | - Tianhua Meng
- Institute of Solid State Physics, Shanxi Datong University, Datong City, 037009 People’s Republic of China
- School of Physical Science and Electronics, Shanxi Datong University, Datong City, 037009 People’s Republic of China
| | - Cuifeng Tian
- School of Physical Science and Electronics, Shanxi Datong University, Datong City, 037009 People’s Republic of China
| | - Guodong Wei
- Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), Jilin University, Changchun City, 130012 People’s Republic of China
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25
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Wang Y, Zhang T, Li J, Wang C, Li X, Sun M, Fu Z, Zhang Z, Zheng H. Multi-plasmon resonances enhanced two-photon coherent anti-Stokes Raman scattering by nanorods. Spectrochim Acta A Mol Biomol Spectrosc 2020; 231:118117. [PMID: 32066077 DOI: 10.1016/j.saa.2020.118117] [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: 11/20/2019] [Revised: 01/24/2020] [Accepted: 01/24/2020] [Indexed: 06/10/2023]
Abstract
The development of new structures allows two-photon coherent anti-Stokes Raman scattering (TPCARS) to be strongly enhanced by multiple surface plasmon resonances (MSPRs). In this paper, plasmonic structure consisting of two Ag nanorods is designed and the enhancement of TPCARS is investigated. By properly selecting designing structure parameters, strong MSPRs peaks at 1020 nm and 505 nm are obtained, which can enhance the TPCARS signal based on the frequency match of the fundamental frequency and frequency doubling. The enhancement factor of TPCARS can reach as high as 3.66 × 1028 with significant electric field enhancements under appropriate selection of system parameters. Furthermore, the two-photon process can be controlled at different optical frequencies by changing the geometric parameters of Ag nanorods. The new scheme advanced in this work can help to achieve single molecule level of CARS, and may have a potential to increase the intensity and resolution of nonlinear optical imaging.
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Affiliation(s)
- Yuyang Wang
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, PR China
| | - Tingting Zhang
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, PR China
| | - Jinping Li
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, PR China.
| | - Chi Wang
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, PR China
| | - Xuwei Li
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, PR China
| | - Meijuan Sun
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, PR China
| | - Zhengkun Fu
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, PR China
| | - Zhenglong Zhang
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, PR China.
| | - Hairong Zheng
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, PR China.
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26
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Son T, Lee C, Moon G, Lee D, Cheong E, Kim D. Enhanced surface plasmon microscopy based on multi-channel spatial light switching for label-free neuronal imaging. Biosens Bioelectron 2019; 146:111738. [PMID: 31600626 DOI: 10.1016/j.bios.2019.111738] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 08/28/2019] [Accepted: 09/27/2019] [Indexed: 02/04/2023]
Abstract
In this paper, we have investigated multi-channel switching of light incidence in multiple directions to improve image clarity in surface plasmon microscopy (SPM) for robust and consistent imaging performance regardless of the pattern geometry and shape. Multi-channel light switching in SPM allows significant reduction of adverse scattering effects by surface plasmon (SP). For proof of concept, an eight-channel spatially switched SPM (ssSPM) system has been set up. The results with reference objects including square arrays and Siemens stars experimentally confirm much improved images with ssSPM by reducing the artifacts of SP scattering significantly. On a quantitative basis, contrast analysis preformed with square arrays shows image contrast enhanced by more than three times over conventional SPM. Three image reconstruction algorithms were evaluated for optimal image acquisition. It is suggested that averaging combined with minimum-filtering produces the highest resolution. ssSPM was applied to label-free imaging of primary neuron cultures and shown to present enhanced images with clarity far better than conventional SPM.
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Affiliation(s)
- Taehwang Son
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, 03722, South Korea
| | - Changhun Lee
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, 03722, South Korea
| | - Gwiyeong Moon
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, 03722, South Korea
| | - Dongsu Lee
- Department of Biotechnology, Yonsei University, Seoul, 03722, South Korea
| | - Eunji Cheong
- Department of Biotechnology, Yonsei University, Seoul, 03722, South Korea
| | - Donghyun Kim
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, 03722, South Korea.
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27
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Wan T, Tang B. Efficient Prediction and Analysis of Optical Trapping at Nanoscale via Finite Element Tearing and Interconnecting Method. Nanoscale Res Lett 2019; 14:294. [PMID: 31456066 PMCID: PMC6712131 DOI: 10.1186/s11671-019-3131-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 08/19/2019] [Indexed: 05/30/2023]
Abstract
Numerical simulation plays an important role for the prediction of optical trapping based on plasmonic nano-optical tweezers. However, complicated structures and drastic local field enhancement of plasmonic effects bring great challenges to traditional numerical methods. In this article, an accurate and efficient numerical simulation method based on a dual-primal finite element tearing and interconnecting (FETI-DP) and Maxwell stress tensor is proposed, to calculate the optical force and potential for trapping nanoparticles. A low-rank sparsification approach is introduced to further improve the FETI-DP simulation performance. The proposed method can decompose a large-scale and complex problem into small-scale and simple problems by using non-overlapping domain division and flexible mesh discretization, which exhibits high efficiency and parallelizability. Numerical results show the effectiveness of the proposed method for the prediction and analysis of optical trapping at nanoscale.
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Affiliation(s)
- Ting Wan
- College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, 210003, China.
- State Key Laboratory of Millimeter Waves, Nanjing, 210096, China.
| | - Benliu Tang
- College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, 210003, China
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28
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Su MN, Ciccarino CJ, Kumar S, Dongare PD, Hosseini Jebeli SA, Renard D, Zhang Y, Ostovar B, Chang WS, Nordlander P, Halas NJ, Sundararaman R, Narang P, Link S. Ultrafast Electron Dynamics in Single Aluminum Nanostructures. Nano Lett 2019; 19:3091-3097. [PMID: 30935208 DOI: 10.1021/acs.nanolett.9b00503] [Citation(s) in RCA: 10] [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] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Aluminum nanostructures are a promising alternative material to noble metal nanostructures for several photonic and catalytic applications, but their ultrafast electron dynamics remain elusive. Here, we combine single-particle transient extinction spectroscopy and parameter-free first-principles calculations to investigate the non-equilibrium carrier dynamics in aluminum nanostructures. Unlike gold nanostructures, we find the sub-picosecond optical response of lithographically fabricated aluminum nanodisks to be more sensitive to the lattice temperature than the electron temperature. We assign the rise in the transient transmission to electron-phonon coupling with a pump-power-independent lifetime of 500 ± 100 fs and theoretically confirm this strong electron-phonon coupling behavior. We also measure electron-phonon lifetimes in chemically synthesized aluminum nanocrystals and find them to be even longer (1.0 ± 0.1 ps) than for the nanodisks. We also observe a rise and decay in the transient transmissions with amplitudes that scale with the surface-to-volume ratio of the aluminum nanodisks, implying a possible hot carrier trapping and detrapping at the native oxide shell-metal core interface.
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Affiliation(s)
| | | | - Sushant Kumar
- Department of Materials Science and Engineering , Rensselaer Polytechnic Institute , Troy , New York 12180 , United States
| | | | | | | | | | | | | | | | | | - Ravishankar Sundararaman
- Department of Materials Science and Engineering , Rensselaer Polytechnic Institute , Troy , New York 12180 , United States
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29
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Abstract
In this review, we firstly introduce physical mechanism of fluorescence resonance energy transfer (FRET), the methods to measure FRET efficiency, and the applications of FRET. Secondly, we introduce the principle and applications of plasmon-enhanced fluorescence (PEF). Thirdly, we focused on the principle and applications of plasmon-enhanced FRET. This review can promote further understanding of FRET and PE-FRET.
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Affiliation(s)
- Huan Zong
- Computational Center for Property and Modification on Nanomaterials, College of Science, Liaoning Shihua University, Fushun, 113001, People's Republic of China.,School of Mathematics and Physics, Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
| | - Xinxin Wang
- School of Mathematics and Physics, Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
| | - Xijiao Mu
- School of Mathematics and Physics, Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
| | - Jingang Wang
- Computational Center for Property and Modification on Nanomaterials, College of Science, Liaoning Shihua University, Fushun, 113001, People's Republic of China
| | - Mengtao Sun
- School of Mathematics and Physics, Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
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30
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Ren J, Wang G, Qiu W, Chen H, Qiu P, Kan Q, Pan JQ. A flexible control on electromagnetic behaviors of graphene oligomer by tuning chemical potential. Nanoscale Res Lett 2018; 13:349. [PMID: 30392036 PMCID: PMC6215537 DOI: 10.1186/s11671-018-2762-4] [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] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 10/17/2018] [Indexed: 06/08/2023]
Abstract
In this work, we demonstrate that the electromagnetic properties of graphene oligomer can be drastically modified by locally modifications of the chemical potentials. The chemical potential variations of different positions in graphene oligomer have different impacts on both extinction spectra and electromagnetic fields. The flexible tailoring of the localizations of the electromagnetic fields can be achieved by precisely adjusting the chemical potentials of the graphene nanodisks at corresponding positions. The proposed nanostructures in this work lead to the practical applications of graphene-based plasmonic devices such as nanosensing, light trapping and photodetection.
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Affiliation(s)
- Junbo Ren
- Fujian Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen, 361021 China
| | - Guangqing Wang
- Fujian Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen, 361021 China
| | - Weibin Qiu
- Fujian Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen, 361021 China
| | - Houbo Chen
- Fujian Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen, 361021 China
| | - Pingping Qiu
- Fujian Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen, 361021 China
| | - Qiang Kan
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100086 China
- Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100086 China
| | - Jiao-Qing Pan
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100086 China
- Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100086 China
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31
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Li J, Zhang T, Chen L. High-Efficiency Plasmonic Third-Harmonic Generation with Graphene on a Silicon Diffractive Grating in Mid-infrared Region. Nanoscale Res Lett 2018; 13:338. [PMID: 30361833 PMCID: PMC6202305 DOI: 10.1186/s11671-018-2750-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 10/12/2018] [Indexed: 06/01/2023]
Abstract
Benefiting from the large third-order nonlinear susceptibility of graphene and significantly enhanced field intensity of graphene plasmons (GPs), graphene has shown great potentials to enhance plasmonic third-harmonic generation conversion efficiency. However, it still lacks an effective configuration that can excite the fundamental frequency (FF) GPs and guide the generated third-harmonic frequency (THF) GPs simultaneously. Here, we have proposed a diffractive silicon grating underneath a graphene sheet to generate and transmit THF GPs. The FF GPs are efficiently excited by illuminating a normal-incidence plane wave due to guided-mode resonance and then are converted to the THF GPs with a large conversion efficiency, originating from the giant field intensity of the FF GPs. We numerically demonstrate that, a large third-harmonic generation conversion efficiency of 3.68 × 10-7 can be realized with a small incident power density of 0.19 MW/cm2 at 28.62 μm. Furthermore, the generated THF GPs can be efficiently guided along low-loss GP waveguides that are connected to both sides of grating section. Our results can stimulate making graphene-based light sources for mid- and far-infrared silicon photonics.
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Affiliation(s)
- Junhao Li
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Tian Zhang
- State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, 100876, China
| | - Lin Chen
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China.
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32
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Teixeira RAR, Lataliza AAB, Raposo NRB, Costa LAS, Sant'Ana AC. Insights on the transport of tamoxifen by gold nanoparticles for MCF-7 breast cancer cells based on SERS spectroscopy. Colloids Surf B Biointerfaces 2018; 170:712-7. [PMID: 29990878 DOI: 10.1016/j.colsurfb.2018.07.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 06/18/2018] [Accepted: 07/02/2018] [Indexed: 01/03/2023]
Abstract
Gold nanoparticles (AuNP) were synthesized and modified with anti-folate receptor antibody (AB), folic acid (FA), crystal violet (CV), poly (ethyleneglycol) methyl ether thiol and the antineoplastic drug tamoxifen (TAM). Such a preparation was incubated in vitro with MCF-7 human breast cancer cells, showing a decrease in the TAM dosage for the reduction of cell viability. The adsorption of TAM on gold surface was investigated by surface-enhanced Raman scattering (SERS) spectroscopy and the assignment based on Density Functional Theory calculations showed that the ether moiety was involved in the interactions with the metal. Such a chemical affinity was correlated with the carrying of TAM in the biological media. CV was included in the preparation as a molecular probe for SERS spectroscopy, whose signal was monitored to analyse the efficiency of the modified AuNP in the target of neoplastic cells. The results showed AB, FA and TAM components had complementary roles in the cell recognition and, therefore, in the efficiency of the drug carrier nanosystem.
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33
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Yi C, Su MN, Dongare PD, Chakraborty D, Cai YY, Marolf DM, Kress RN, Ostovar B, Tauzin LJ, Wen F, Chang WS, Jones MR, Sader JE, Halas NJ, Link S. Polycrystallinity of Lithographically Fabricated Plasmonic Nanostructures Dominates Their Acoustic Vibrational Damping. Nano Lett 2018; 18:3494-3501. [PMID: 29715035 DOI: 10.1021/acs.nanolett.8b00559] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The study of acoustic vibrations in nanoparticles provides unique and unparalleled insight into their mechanical properties. Electron-beam lithography of nanostructures allows precise manipulation of their acoustic vibration frequencies through control of nanoscale morphology. However, the dissipation of acoustic vibrations in this important class of nanostructures has not yet been examined. Here we report, using single-particle ultrafast transient extinction spectroscopy, the intrinsic damping dynamics in lithographically fabricated plasmonic nanostructures. We find that in stark contrast to chemically synthesized, monocrystalline nanoparticles, acoustic energy dissipation in lithographically fabricated nanostructures is solely dominated by intrinsic damping. A quality factor of Q = 11.3 ± 2.5 is observed for all 147 nanostructures, regardless of size, geometry, frequency, surface adhesion, and mode. This result indicates that the complex Young's modulus of this material is independent of frequency with its imaginary component being approximately 11 times smaller than its real part. Substrate-mediated acoustic vibration damping is strongly suppressed, despite strong binding between the glass substrate and Au nanostructures. We anticipate that these results, characterizing the optomechanical properties of lithographically fabricated metal nanostructures, will help inform their design for applications such as photoacoustic imaging agents, high-frequency resonators, and ultrafast optical switches.
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Affiliation(s)
- Chongyue Yi
- Department of Chemistry , Rice University , Houston , Texas 77005 , United States
| | - Man-Nung Su
- Department of Chemistry , Rice University , Houston , Texas 77005 , United States
| | - Pratiksha D Dongare
- Applied Physics Graduate Program , Rice University , Houston , Texas 77005 , United States
- Department of Electrical and Computer Engineering , Rice University , Houston , Texas 77005 , United States
| | - Debadi Chakraborty
- ARC Centre of Excellence in Exciton Science, School of Mathematics and Statistics , The University of Melbourne , Parkville , VIC 3010 , Australia
| | - Yi-Yu Cai
- Department of Chemistry , Rice University , Houston , Texas 77005 , United States
| | - David M Marolf
- Department of Chemistry , Rice University , Houston , Texas 77005 , United States
| | - Rachael N Kress
- Department of Chemistry , Rice University , Houston , Texas 77005 , United States
| | - Behnaz Ostovar
- Department of Chemistry , Rice University , Houston , Texas 77005 , United States
| | - Lawrence J Tauzin
- Department of Chemistry , Rice University , Houston , Texas 77005 , United States
| | - Fangfang Wen
- Department of Chemistry , Rice University , Houston , Texas 77005 , United States
| | - Wei-Shun Chang
- Department of Chemistry , Rice University , Houston , Texas 77005 , United States
| | - Matthew R Jones
- Department of Chemistry , Rice University , Houston , Texas 77005 , United States
| | - John E Sader
- ARC Centre of Excellence in Exciton Science, School of Mathematics and Statistics , The University of Melbourne , Parkville , VIC 3010 , Australia
| | - Naomi J Halas
- Department of Chemistry , Rice University , Houston , Texas 77005 , United States
- Department of Electrical and Computer Engineering , Rice University , Houston , Texas 77005 , United States
- Department of Physics and Astronomy , Rice University , Houston , Texas 77005 , United States
- Laboratory for Nanophotonics , Rice University , Houston , Texas 77005 , United States
| | - Stephan Link
- Department of Chemistry , Rice University , Houston , Texas 77005 , United States
- Department of Electrical and Computer Engineering , Rice University , Houston , Texas 77005 , United States
- Laboratory for Nanophotonics , Rice University , Houston , Texas 77005 , United States
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34
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Shang Q, Zhang S, Liu Z, Chen J, Yang P, Li C, Li W, Zhang Y, Xiong Q, Liu X, Zhang Q. Surface Plasmon Enhanced Strong Exciton-Photon Coupling in Hybrid Inorganic-Organic Perovskite Nanowires. Nano Lett 2018; 18:3335-3343. [PMID: 29722986 DOI: 10.1021/acs.nanolett.7b04847] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Manipulating strong light-matter interaction in semiconductor microcavities is crucial for developing high-performance exciton polariton devices with great potential in next-generation all-solid state quantum technologies. In this work, we report surface plasmon enhanced strong exciton-photon interaction in CH3NH3PbBr3 perovskite nanowires. Characteristic anticrossing behaviors, indicating a Rabi splitting energy up to ∼564 meV, are observed near exciton resonance in hybrid perovskite nanowire/SiO2/Ag cavity at room temperature. The exciton-photon coupling strength is enhanced by ∼35% on average, which is mainly attributed to surface plasmon induced localized excitation field redistribution. Further, systematic studies on SiO2 thickness and nanowire dimension dependence of exciton-photon interaction are presented. These results provide new avenues to achieve extremely high coupling strengths and push forward the development of electrically pumped and ultralow threshold small lasers.
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Affiliation(s)
- Qiuyu Shang
- Department of Materials Science and Engineering, College of Engineering , Peking University , Beijing 100871 , P. R. China
- Research Center for Wide Gap Semiconductor , Peking University , Beijing 100871 , China
| | - Shuai Zhang
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center of Excellence for Nanoscience , National Center for Nanoscience and Technology , Beijing 100190 , P. R. China
| | - Zhen Liu
- Department of Materials Science and Engineering, College of Engineering , Peking University , Beijing 100871 , P. R. China
| | - Jie Chen
- Department of Materials Science and Engineering, College of Engineering , Peking University , Beijing 100871 , P. R. China
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center of Excellence for Nanoscience , National Center for Nanoscience and Technology , Beijing 100190 , P. R. China
| | - Pengfei Yang
- Department of Materials Science and Engineering, College of Engineering , Peking University , Beijing 100871 , P. R. China
| | - Chun Li
- Department of Materials Science and Engineering, College of Engineering , Peking University , Beijing 100871 , P. R. China
| | - Wei Li
- Department of Physics , Tsinghua University , Beijing 100084 , P. R. China
| | - Yanfeng Zhang
- Department of Materials Science and Engineering, College of Engineering , Peking University , Beijing 100871 , P. R. China
| | - Qihua Xiong
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371
| | - Xinfeng Liu
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center of Excellence for Nanoscience , National Center for Nanoscience and Technology , Beijing 100190 , P. R. China
| | - Qing Zhang
- Department of Materials Science and Engineering, College of Engineering , Peking University , Beijing 100871 , P. R. China
- Research Center for Wide Gap Semiconductor , Peking University , Beijing 100871 , China
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35
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Peterson AW, Halter M, Tona A, Plant AL, Elliott JT. Mass Measurements of Focal Adhesions in Single Cells Using High Resolution Surface Plasmon Resonance Microscopy. Proc SPIE Int Soc Opt Eng 2018; 10509:1050905. [PMID: 29755164 PMCID: PMC5947864 DOI: 10.1117/12.2290776] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Surface plasmon resonance microscopy (SPRM) is a powerful label-free imaging technique with spatial resolution approaching the optical diffraction limit. The high sensitivity of SPRM to small changes in index of refraction at an interface allows imaging of dynamic protein structures within a cell. Visualization of subcellular features, such as focal adhesions (FAs), can be performed on live cells using a high numerical aperture objective lens with a digital light projector to precisely position the incident angle of the excitation light. Within the cell-substrate region of the SPRM image, punctate regions of high contrast are putatively identified as the cellular FAs. Optical parameter analysis is achieved by application of the Fresnel model to the SPRM data and resulting refractive index measurements are used to calculate protein density and mass. FAs are known to be regions of high protein density that reside at the cell-substratum interface. Comparing SPRM with fluorescence images of antibody stained for vinculin, a component in FAs, reveals similar measurements of FA size. In addition, a positive correlation between FA size and protein density is revealed by SPRM. Comparing SPRM images for two cell types reveals a distinct difference in the protein density and mass of their respective FAs. Application of SPRM to quantify mass can greatly aid monitoring basic processes that control FA mass and growth and contribute to accurate models that describe cell-extracellular interactions.
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36
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Capek I. Polymer decorated gold nanoparticles in nanomedicine conjugates. Adv Colloid Interface Sci 2017; 249:386-399. [PMID: 28259207 DOI: 10.1016/j.cis.2017.01.007] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 01/10/2017] [Accepted: 01/11/2017] [Indexed: 02/06/2023]
Abstract
Noble metal, especially gold nanoparticles and their conjugates with biopolymers have immense potential for disease diagnosis and therapy on account of their surface plasmon resonance (SPR) enhanced light scattering and absorption. Conjugation of noble metal nanoparticles to ligands specifically targeted to biomarkers on diseased cells allows molecular-specific imaging and detection of disease. The development of smart gold nanoparticles (AuNPs) that can deliver therapeutics at a sustained rate directly to cancer cells may provide better efficacy and lower toxicity for treating cancer tumors. We highlight some of the promising classes of targeting systems that are under development for the delivery of gold nanoparticles. Nanoparticles designed for biomedical applications are often coated with polymers containing reactive functional groups to conjugate targeting ligands, cell receptors or drugs. Using targeted nanoparticles to deliver chemotherapeutic agents in cancer therapy offers many advantages to improve drug/gene delivery and to overcome many problems associated with conventional radiotherapy and chemotherapy. The targeted nanoparticles were found to be effective in killing cancer cells which were studied using various anticancer assays. Cell morphological analysis shows the changes occurred in cancer cells during the treatment with AuNPs. The results determine the influence of particle size and concentration of AuNPs on their absorption, accumulation, and cytotoxicity in model normal and cancer cells. As the mean particle diameter of the AuNPs decreased, their rate of absorption by the intestinal epithelium cells increased. These results provide important insights into the relationship between the dimensions of AuNPs and their gastrointestinal uptake and potential cytotoxicity. Furthermore gold nanoparticles efficiently convert the absorbed light into localized heat, which can be exploited for the selective laser photothermal therapy of cancer. We also review the emerging technologies for the fabrication of targeted gold colloids as imagining agents.
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Affiliation(s)
- Ignác Capek
- Slovak Academy of Sciences, Polymer Institute, Institute of Measurement Sciences, Dúbravská cesta, Bratislava, Slovakia.
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37
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Abstract
Thanks to the superiority in controlling the optical wave fronts, plasmonic nanostructures have led to various striking applications, among which metasurface holograms have been well developed and endowed with strong multiplexing capability. Here, we report a new design of multiplexed plasmonic hologram, which allows for reconstruction of multiple holographic images in free space by scatterings of surface plasmon polariton (SPP) waves in different propagation directions. Besides, the scattered polarization states can be further modulated by arranging the orientations of nanoscatterers. By incorporation of the SPP propagation and polarized scattering, a 4-fold hologram with low crosstalk is successfully demonstrated, which breaks the limitation of only two orthogonal states in conventional polarization multiplexers. Moreover, our design using the near-field SPP as reference wave holds the advantage for compact integration. This holographic approach is expected to inspire new photonic designs with enhanced information capacity and integratability.
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Affiliation(s)
- Ji Chen
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences and ‡Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210093, China
| | - Tao Li
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences and ‡Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210093, China
| | - Shuming Wang
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences and ‡Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210093, China
| | - Shining Zhu
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences and ‡Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210093, China
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38
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Kharintsev S, Alekseev A, Loos J. Etchant-based design of gold tip apexes for plasmon-enhanced Raman spectromicroscopy. Spectrochim Acta A Mol Biomol Spectrosc 2017; 171:139-143. [PMID: 27501486 DOI: 10.1016/j.saa.2016.07.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 07/22/2016] [Accepted: 07/31/2016] [Indexed: 06/06/2023]
Abstract
In this paper, we gain insight into the design and optimization of plasmonic (metallic) tips prepared with dc-pulsed voltage electrochemical etching gold wires, provided that, a duty cycle is self-tuned. Physically, it means that etching electrolyte attacks the gold wire equally for all pulse lengths, regardless of its surface shape. Etchant effect on the reproducibility of a curvature radius of the tip apex is demonstrated. It means that the gold conical tips can be designed chemically with a choice of proper etchant electrolyte. It is suggested to use a microtomed binary polymer blend consisting of polyamide and low density polyethylene, as a calibration grating, for optimizing and standardizing tip-enhanced Raman scattering performance.
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Affiliation(s)
- Sergey Kharintsev
- Department of Optics and Nanophotonics, Institute of Physics, Kazan Federal University, Kremlevskaya, 16, Kazan 420008, Russia; Tatarstan Academy of Sciences, Baumana str., 20, Kazan 420111, Russia.
| | - Alexander Alekseev
- National Laboratory Astana, Nazarbayev University, Kabanbay batyr ave., 53, Astana 01000, Kazakhstan; STC NMST, Moscow Institute for Electronic Technology, Moscow, Russia
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39
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Kunwar S, Sui M, Zhang Q, Pandey P, Li MY, Lee J. Various Silver Nanostructures on Sapphire Using Plasmon Self-Assembly and Dewetting of Thin Films. Nanomicro Lett 2017; 9:17. [PMID: 30474035 PMCID: PMC6225926 DOI: 10.1007/s40820-016-0120-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 11/07/2016] [Indexed: 05/04/2023]
Abstract
Silver (Ag) nanostructures demonstrate outstanding optical, electrical, magnetic, and catalytic properties and are utilized in photonic, energy, sensors, and biomedical devices. The target application and the performance can be inherently tuned by control of configuration, shape, and size of Ag nanostructures. In this work, we demonstrate the systematical fabrication of various configurations of Ag nanostructures on sapphire (0001) by controlling the Ag deposition thickness at different annealing environments in a plasma ion coater. In particular, the evolution of Ag particles (between 2 and 20 nm), irregular nanoclusters (between 30 and 60 nm), and nanocluster networks (between 80 and 200 nm) are found be depended on the thickness of Ag thin film. The results were systematically analyzed and explained based on the solid-state dewetting, surface diffusion, Volmer-Weber growth model, coalescence, and surface energy minimization mechanism. The growth behavior of Ag nanostructures is remarkably differentiated at higher annealing temperature (750 °C) due to the sublimation and temperature-dependent characteristic of dewetting process. In addition, Raman and reflectance spectra analyses reveal that optical properties of Ag nanostructures depend on their morphology.
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Affiliation(s)
- Sundar Kunwar
- College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul, 01897 South Korea
| | - Mao Sui
- College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul, 01897 South Korea
| | - Quanzhen Zhang
- College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul, 01897 South Korea
| | - Puran Pandey
- College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul, 01897 South Korea
| | - Ming-Yu Li
- College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul, 01897 South Korea
| | - Jihoon Lee
- College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul, 01897 South Korea
- Institute of Nanoscale Science and Engineering, University of Arkansas, Fayetteville, AR 72701 USA
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40
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Bamdad F, Khorram F, Samet M, Bamdad K, Sangi MR, Allahbakhshi F. Spectrophotometric determination of L-cysteine by using polyvinylpyrrolidone-stabilized silver nanoparticles in the presence of barium ions. Spectrochim Acta A Mol Biomol Spectrosc 2016; 161:52-57. [PMID: 26950501 DOI: 10.1016/j.saa.2016.02.030] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [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: 05/17/2015] [Revised: 02/07/2016] [Accepted: 02/28/2016] [Indexed: 06/05/2023]
Abstract
In this article a simple and selective colorimetric probe for cysteine determination using silver nano particles (AgNPS) is described. The determination process was based upon the surface plasmon resonance properties of polyvinylpyrrolidone-stabilized AgNPS. Interaction of AgNPS with cysteine molecules in the presence of barium ions induced a red shift in the surface plasmon resonance (SPR) maximum of AgNPs, as a result of nanoparticle aggregation. Consequently, yellow color of AgNP solution was changed to pink. The linear range for the determination of cysteine was 3.2-8.2 μM (R=0.9965) with a limit of detection equal to 2.8 μM (3σ). The proposed method was successfully applied to the determination of cysteine in human plasma samples. Acceptable recovery results of the spiked samples confirmed the validity of the proposed method.
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Affiliation(s)
- Farzad Bamdad
- Department of Chemistry, Faculty of Science, Arak University, Arak 38156-8-8349, Iran.
| | - Fateme Khorram
- Department of Chemistry, Faculty of Science, Arak University, Arak 38156-8-8349, Iran
| | - Maryam Samet
- Department of Chemistry, Faculty of Science, Arak University, Arak 38156-8-8349, Iran
| | - Kourosh Bamdad
- Department of Biology, Faculty of Science, Payame Noor University (PNU), PO Box 19395-3697, Iran
| | - Mohammad Reza Sangi
- Department of Chemistry, Faculty of Science, Arak University, Arak 38156-8-8349, Iran
| | - Fateme Allahbakhshi
- Department of Chemistry, Faculty of Science, Arak University, Arak 38156-8-8349, Iran
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41
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Li Y, Yan X, Wu Y, Zhang X, Ren X. Plasmon-Enhanced Light Absorption in GaAs Nanowire Array Solar Cells. Nanoscale Res Lett 2015; 10:436. [PMID: 26546326 PMCID: PMC4636537 DOI: 10.1186/s11671-015-1110-1] [Citation(s) in RCA: 6] [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: 07/14/2015] [Accepted: 10/06/2015] [Indexed: 05/30/2023]
Abstract
In this paper, we propose a plasmon-enhanced solar cell structure based on a GaAs nanowire array decorated with metal nanoparticles. The results show that by engineering the metallic nanoparticles, localized surface plasmon could be excited, which can concentrate the incident light and propagate the energy to nanowires. The surface plasmon can dramatically enhance the absorbance of near-bandgap light, and the enhancement is influenced by the size and material of nanoparticles. By optimizing the particle parameters, a large absorbance enhancement of 50 % at 760 nm and a high conversion efficiency of 14.5 % can be obtained at a low diameter and period ratio (D/P ratio) of 0.3. The structure is promising for low-cost high-performance nanoscale solar cells.
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Affiliation(s)
- Yanhong Li
- State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, 100876, China
| | - Xin Yan
- State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, 100876, China
| | - Yao Wu
- State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, 100876, China
| | - Xia Zhang
- State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, 100876, China.
| | - Xiaomin Ren
- State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, 100876, China
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42
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Olivieri A, Chen C, Hassan S, Lisicka-Skrzek E, Tait RN, Berini P. Plasmonic nanostructured metal-oxide-semiconductor reflection modulators. Nano Lett 2015; 15:2304-2311. [PMID: 25730698 DOI: 10.1021/nl504389f] [Citation(s) in RCA: 7] [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] [Indexed: 06/04/2023]
Abstract
We propose a plasmonic surface that produces an electrically controlled reflectance as a high-speed intensity modulator. The device is conceived as a metal-oxide-semiconductor capacitor on silicon with its metal structured as a thin patch bearing a contiguous nanoscale grating. The metal structure serves multiple functions as a driving electrode and as a grating coupler for perpendicularly incident p-polarized light to surface plasmons supported by the patch. Modulation is produced by charging and discharging the capacitor and exploiting the carrier refraction effect in silicon along with the high sensitivity of strongly confined surface plasmons to index perturbations. The area of the modulator is set by the area of the incident beam, leading to a very compact device for a strongly focused beam (∼2.5 μm in diameter). Theoretically, the modulator can operate over a broad electrical bandwidth (tens of gigahertz) with a modulation depth of 3 to 6%, a loss of 3 to 4 dB, and an optical bandwidth of about 50 nm. About 1000 modulators can be integrated over a 50 mm(2) area producing an aggregate electro-optic modulation rate in excess of 1 Tb/s. We demonstrate experimentally modulators operating at telecommunications wavelengths, fabricated as nanostructured Au/HfO2/p-Si capacitors. The modulators break conceptually from waveguide-based devices and belong to the same class of devices as surface photodetectors and vertical cavity surface-emitting lasers.
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Affiliation(s)
- Anthony Olivieri
- †School of Electrical Engineering and Computer Science, University of Ottawa, 800 King Edward Avenue, Ottawa, Ontairo K1N 6N5, Canada
| | - Chengkun Chen
- †School of Electrical Engineering and Computer Science, University of Ottawa, 800 King Edward Avenue, Ottawa, Ontairo K1N 6N5, Canada
| | - Sa'ad Hassan
- ‡Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur Streey, Ottawa, Ontairo K1N 6N5, Canada
| | - Ewa Lisicka-Skrzek
- †School of Electrical Engineering and Computer Science, University of Ottawa, 800 King Edward Avenue, Ottawa, Ontairo K1N 6N5, Canada
| | - R Niall Tait
- §Department of Electronics, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario K1S 5B6, Canada
| | - Pierre Berini
- †School of Electrical Engineering and Computer Science, University of Ottawa, 800 King Edward Avenue, Ottawa, Ontairo K1N 6N5, Canada
- ∥Department of Physics, University of Ottawa, 150 Louis Pasteur, Ottawa, Ontario K1N 6N5, Canada
- ⊥Centre for Research in Photonics at the University of Ottawa, 800 King Edward Avenue, Ottawa, Ontario K1N 6N5, Canada
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43
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Han P. Near-field surface plasmon effects on Au-double-slit diffraction for polychromatic light. Nanoscale Res Lett 2014; 9:561. [PMID: 25386100 PMCID: PMC4200478 DOI: 10.1186/1556-276x-9-561] [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: 06/24/2014] [Accepted: 09/23/2014] [Indexed: 06/04/2023]
Abstract
The surface plasmon effects on near-field diffraction for polychromatic light are studied. An Au-double-slit is used as the model and Fresnel integral is employed to perform the theoretic analysis. The results are illustrated with numerical examples and they show that, compared with the normal double-slit, the plasmon effect changes the spectral shift from redshift to blueshift and also enhances the intensity peak. This effect can be used in optical data transmission or specific spectral selectors.
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Affiliation(s)
- Pin Han
- Graduate Institute of Precision Engineering, National Chung Hsing University, 250 Kuo Kuang Road, Taichung 402, Taiwan
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