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Vrážel M, Ismail RK, Courson R, Hammouti A, Bouška M, Larrodé A, Baillieul M, Giraud W, Le Floch S, Bodiou L, Charrier J, Boukerma K, Michel K, Němec P, Nazabal V. Surface functionalization of a chalcogenide IR photonic sensor by means of a polymer membrane for water pollution remediation. Analyst 2024; 149:4723-4735. [PMID: 39105485 DOI: 10.1039/d4an00721b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/07/2024]
Abstract
Rapid, simultaneous detection of organic chemical pollutants in water is an important issue to solve for protecting human health. This study investigated the possibility of developing an in situ reusable optical sensor capable of selective measurements utilizing a chalcogenide transducer supplemented by a hydrophobic polymer membrane with detection based on evanescent waves in the mid-infrared spectrum. In order to optimise a polyisobutylene hydrophobic film deposited on a chalcogenide waveguide, a zinc selenide prism was utilized as a testbed for performing attenuated total reflection with Fourier-transform infrared spectroscopy. To comply with the levels mentioned in health guidelines, the target detection range in this study was kept rather low, with the concentration range extended from 50 ppb to 100 ppm to cover accidental pollution problems, while targeted hydrocarbons (benzene, toluene, and xylene) were still detected at a concentration of 100 ppb. Infrared measurements in the selected range showed a linear behaviour, with the exception of two constantly reproducible plateau phases around 25 and 80 ppm, which were observable for two polymer film thicknesses of 5 and 10 μm. The polymer was also found to be reusable by regenerating it with water between individual measurements by increasing the water temperature and flow to facilitate reverse exchange kinetics. Given the good conformability of the hydrophobic polymer when coated on chalcogenide photonic circuits and its demonstrated ability to detect organic pollutants in water and to be regenerated afterwards, a microfluidic channel utilising water flow over an evanescent wave optical transducer based on a chalcogenide waveguide and a polyisobutylene (PIB) hydrophobic layer deposited on its surface was successfully fabricated from polydimethylsiloxane by filling a mold prepared via CAD and 3D printing techniques.
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Affiliation(s)
- Martin Vrážel
- Department of Graphic Arts and Photophysics, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 53210 Pardubice, Czech Republic
| | - Raïssa Kadar Ismail
- Univ Rennes, CNRS, ISCR - UMR6226, F-35000 Rennes, France.
- BRGM, Direction Eau, Environnement et Ecotechnologies, 45100 Orleans, France
| | - Rémi Courson
- IFREMER, Laboratoire Détection, Capteurs et Mesures, 29280 Plouzané, France
| | - Abdelali Hammouti
- Univ Rennes, CNRS, Institut Foton - UMR 6082, F-22305 Lannion, France
| | - Marek Bouška
- Department of Graphic Arts and Photophysics, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 53210 Pardubice, Czech Republic
| | - Amélie Larrodé
- Univ Rennes, CNRS, ISCR - UMR6226, F-35000 Rennes, France.
| | - Marion Baillieul
- Department of Graphic Arts and Photophysics, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 53210 Pardubice, Czech Republic
| | | | | | - Loïc Bodiou
- Univ Rennes, CNRS, Institut Foton - UMR 6082, F-22305 Lannion, France
| | - Joël Charrier
- Univ Rennes, CNRS, Institut Foton - UMR 6082, F-22305 Lannion, France
| | - Kada Boukerma
- IFREMER, Laboratoire Détection, Capteurs et Mesures, 29280 Plouzané, France
| | - Karine Michel
- BRGM, Direction Eau, Environnement et Ecotechnologies, 45100 Orleans, France
| | - Petr Němec
- Department of Graphic Arts and Photophysics, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 53210 Pardubice, Czech Republic
| | - Virginie Nazabal
- Univ Rennes, CNRS, ISCR - UMR6226, F-35000 Rennes, France.
- Department of Graphic Arts and Photophysics, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 53210 Pardubice, Czech Republic
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Meziani S, Jaafar A, Hammouti A, Bodiou L, Lorrain N, Pirasteh P, Courson R, Lemaitre J, Nazabal V, Guendouz M, Charrier J. Volume detection based on porous silicon waveguide for CO 2 mid-infrared spectroscopy. OPTICS EXPRESS 2024; 32:13628-13639. [PMID: 38859328 DOI: 10.1364/oe.516923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 02/29/2024] [Indexed: 06/12/2024]
Abstract
A mid-infrared (mid-IR) porous silicon (PSi) waveguide gas sensor was fabricated. PSi guiding and confinement layers were prepared by electrochemical anodization. Ridge waveguides were patterned using standard i-line photolithography and reactive ion etching. Due to the open pores, light and gas molecules interact in the inside volume, unlike bulk material in which the interaction takes place with the evanescent part of the light. Propagation losses are measured for a wavelength range spanning from λ = 3.9 to 4.55 µm with a value of 11.4 dB/cm at λ = 4.28 µm. The influence of native oxidation and ageing on the propagation losses was investigated. Limit of detection (LoD) of 1000 ppm is obtained with the waveguide sensor at the carbon dioxide (CO2) absorption peak at λ = 4.28 µm.
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Ling H, Nourbakhsh M, Whiteside VR, Tischler JG, Davoyan AR. Near-Unity Light-Matter Interaction in Mid-Infrared van der Waals Metasurfaces. NANO LETTERS 2024; 24:3315-3322. [PMID: 38452251 DOI: 10.1021/acs.nanolett.3c04118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
Accessing mid-infrared radiation is of great importance for a range of applications, including thermal imaging, sensing, and radiative cooling. Here, we study light interaction with hexagonal boron nitride (hBN) nanocavities and reveal strong and tunable resonances across its hyperbolic transition. In addition to conventional phonon-polariton excitations, we demonstrate that the high refractive index of hexagonal boron nitride outside the Reststrahlen band allows enhanced light-matter interactions in deep subwavelength (<λ/15) nanostructures across a broad 7-8 μm range. Emergence and interplay of Fabry-Perot and Mie-like resonances are examined experimentally and theoretically. Near-unity absorption and high quality (Q ≥ 80) resonance interaction in the vicinity of the hBN transverse optical phonon is further observed. Our study provides avenues to design highly efficient and ultracompact structures for controlling mid-infrared radiation and accessing strong light-matter interactions with hBN.
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Affiliation(s)
- Haonan Ling
- Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, California 90095, United States
| | - Milad Nourbakhsh
- Deven Energy Hall, School of Electrical and Computer Engineering, University of Oklahoma, 110 W. Boyd Street, Norman, Oklahoma 73019, United States
| | - Vincent R Whiteside
- Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, 440 West Brooks Street, Norman, Oklahoma 73019, United States
| | - Joseph G Tischler
- Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, 440 West Brooks Street, Norman, Oklahoma 73019, United States
| | - Artur R Davoyan
- Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, California 90095, United States
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4
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Qureshi MH, Bao J, Kleine TS, Kim KJ, Carothers KJ, Molineux J, Cho E, Kang KS, Godman NP, Coropceanu V, Bredas JL, Norwood RA, Njardarson JT, Pyun J. Synthesis of Deuterated and Sulfurated Polymers by Inverse Vulcanization: Engineering Infrared Transparency via Deuteration. J Am Chem Soc 2023; 145:27821-27829. [PMID: 38060430 DOI: 10.1021/jacs.3c10985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
The synthesis of deuterated, sulfurated, proton-free, glassy polymers offers a route to optical polymers for infrared (IR) optics, specifically for midwave IR (MWIR) photonic devices. Deuterated polymers have been utilized to enhance neutron cross-sectional contrast with proteo polymers for morphological neutron scattering measurements but have found limited utility for other applications. We report the synthesis of perdeuterated d14-(1,3-diisopropenylbenzene) with over 99% levels of deuteration and the preparation of proton-free, perdeuterated poly(sulfur-random-d14-(1,3-diisopropenylbenzene)) (poly(S-r-d14-DIB)) via inverse vulcanization with elemental sulfur. Detailed structural analysis and quantum computational calculations of these reactions demonstrate significant kinetic isotope effects, which alter mechanistic pathways to form different copolymer microstructures for deutero vs proteo poly(S-r-DIB). This design also allows for molecular engineering of MWIR transparency by shifting C-H bond vibrations around 3.3 μm/3000 cm-1 observed in proteo poly(S-r-DIB) to 4.2 μm/2200 cm-1. Furthermore, the fabrication of thin-film MWIR optical gratings made from molding of deuterated-sulfurated, proton-free poly(S-r-d14-DIB) is demonstrated; operation of these gratings at 3.39 μm is achieved successfully, while the proteo poly(S-r-DIB) gratings are opaque at these wavelengths, highlighting the promise of MWIR sensors and compact spectrometers from these materials.
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Affiliation(s)
- Munaum H Qureshi
- Department of Chemistry and Biochemistry, University of Arizona, 1306 E. University Blvd., Tucson, Arizona 85721, United States
| | - Jianhua Bao
- Department of Chemistry and Biochemistry, University of Arizona, 1306 E. University Blvd., Tucson, Arizona 85721, United States
| | - Tristan S Kleine
- Department of Chemistry and Biochemistry, University of Arizona, 1306 E. University Blvd., Tucson, Arizona 85721, United States
| | - Kyung-Jo Kim
- Wyant College of Optical Sciences, University of Arizona, Tucson, Arizona 85721, United States
| | - Kyle J Carothers
- Department of Chemistry and Biochemistry, University of Arizona, 1306 E. University Blvd., Tucson, Arizona 85721, United States
- Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson Air Force Base, Dayton, Ohio 45433, United States
- Azimuth Corporation, 2970 Presidential Drive, Suite 200, Beavercreek, Ohio 45324, United States
| | - Jake Molineux
- Department of Chemistry and Biochemistry, University of Arizona, 1306 E. University Blvd., Tucson, Arizona 85721, United States
| | - Eunkyung Cho
- Department of Chemistry and Biochemistry, University of Arizona, 1306 E. University Blvd., Tucson, Arizona 85721, United States
- Division of Energy Technology, DIGST, Daegu 42988, Republic of Korea
| | - Kyung-Seok Kang
- Department of Chemistry and Biochemistry, University of Arizona, 1306 E. University Blvd., Tucson, Arizona 85721, United States
| | - Nicholas P Godman
- Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson Air Force Base, Dayton, Ohio 45433, United States
- Azimuth Corporation, 2970 Presidential Drive, Suite 200, Beavercreek, Ohio 45324, United States
| | - Veaceslav Coropceanu
- Department of Chemistry and Biochemistry, University of Arizona, 1306 E. University Blvd., Tucson, Arizona 85721, United States
| | - Jean-Luc Bredas
- Department of Chemistry and Biochemistry, University of Arizona, 1306 E. University Blvd., Tucson, Arizona 85721, United States
| | - Robert A Norwood
- Wyant College of Optical Sciences, University of Arizona, Tucson, Arizona 85721, United States
| | - Jon T Njardarson
- Department of Chemistry and Biochemistry, University of Arizona, 1306 E. University Blvd., Tucson, Arizona 85721, United States
| | - Jeffrey Pyun
- Department of Chemistry and Biochemistry, University of Arizona, 1306 E. University Blvd., Tucson, Arizona 85721, United States
- Wyant College of Optical Sciences, University of Arizona, Tucson, Arizona 85721, United States
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Shuleiko D, Zabotnov S, Sokolovskaya O, Poliakov M, Volkova L, Kunkel T, Kuzmin E, Danilov P, Kudryashov S, Pepelayev D, Kozyukhin S, Golovan L, Kashkarov P. Hierarchical Surface Structures and Large-Area Nanoscale Gratings in As 2S 3 and As 2Se 3 Films Irradiated with Femtosecond Laser Pulses. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4524. [PMID: 37444839 DOI: 10.3390/ma16134524] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/16/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023]
Abstract
Chalcogenide vitreous semiconductors (ChVSs) find application in rewritable optical memory storage and optically switchable infrared photonic devices due to the possibility of fast and reversible phase transitions, as well as high refractive index and transmission in the near- and mid-infrared spectral range. Formed on such materials, laser-induced periodic surface structures (LIPSSs), open wide prospects for increasing information storage capacity and create polarization-sensitive optical elements of infrared photonics. In the present work, a possibility to produce LIPSSs under femtosecond laser irradiation (pulse duration 300 fs, wavelength 515 nm, repetition rate up to 2 kHz, pulse energy ranged 0.03 to 0.5 μJ) is demonstrated on a large (up to 5 × 5 mm2) area of arsenic sulfide (As2S3) and arsenic selenide (As2Se3) ChVS films. Scanning electron and atomic force microscopy revealed that LIPSSs with various periods (170-490 nm) and orientations can coexist within the same irradiated region as a hierarchical structure, resulting from the interference of various plasmon polariton modes generated under intense photoexcitation of nonequilibrium carriers within the film. The depth of the structures varied from 30 to 100 nm. The periods and orientations of the formed LIPSSs were numerically simulated using the Sipe-Drude approach. A good agreement of the calculations with the experimental data was achieved.
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Affiliation(s)
- Dmitrii Shuleiko
- Faculty of Physics, Lomonosov Moscow State University, 1/2 Leninskie Gory, 119991 Moscow, Russia
| | - Stanislav Zabotnov
- Faculty of Physics, Lomonosov Moscow State University, 1/2 Leninskie Gory, 119991 Moscow, Russia
| | - Olga Sokolovskaya
- Faculty of Physics, Lomonosov Moscow State University, 1/2 Leninskie Gory, 119991 Moscow, Russia
| | - Maksim Poliakov
- Institute of Nanotechnology of Microelectronics of the Russian Academy of Sciences, 16A Nagatinskaya St., 119991 Moscow, Russia
| | - Lidiya Volkova
- Institute of Nanotechnology of Microelectronics of the Russian Academy of Sciences, 16A Nagatinskaya St., 119991 Moscow, Russia
| | - Tatiana Kunkel
- Moscow Institute of Physics and Technology, 9 Institutskiy Per., 141701 Dolgoprudny, Russia
| | - Evgeny Kuzmin
- Lebedev Physical Institute, The Russian Academy of Science, 53 Leninsky Avenue, 119991 Moscow, Russia
| | - Pavel Danilov
- Lebedev Physical Institute, The Russian Academy of Science, 53 Leninsky Avenue, 119991 Moscow, Russia
| | - Sergey Kudryashov
- Lebedev Physical Institute, The Russian Academy of Science, 53 Leninsky Avenue, 119991 Moscow, Russia
| | - Dmitrii Pepelayev
- Institute of Advanced Materials and Technologies, National Research University of Electronic Technology, 1 Shokina Sq., 124498 Zelenograd, Russia
| | - Sergey Kozyukhin
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky Avenue, 119991 Moscow, Russia
| | - Leonid Golovan
- Faculty of Physics, Lomonosov Moscow State University, 1/2 Leninskie Gory, 119991 Moscow, Russia
| | - Pavel Kashkarov
- Faculty of Physics, Lomonosov Moscow State University, 1/2 Leninskie Gory, 119991 Moscow, Russia
- National Research Centre "Kurchatov Institute", 1 Akademika Kurchatova Sq., 123182 Moscow, Russia
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Munim NM, Treena TT, Islam MR, Nishat MM. Design and analysis of an ultra-high sensitive and tunable metal-insulator-metal waveguide-coupled octagonal ring resonator utilizing gold nanorods. SENSING AND BIO-SENSING RESEARCH 2022. [DOI: 10.1016/j.sbsr.2022.100529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
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7
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Rashid KS, Tathfif I, Yaseer AA, Hassan MF, Sagor RH. Cog-shaped refractive index sensor embedded with gold nanorods for temperature sensing of multiple analytes. OPTICS EXPRESS 2021; 29:37541-37554. [PMID: 34808824 DOI: 10.1364/oe.442954] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 10/21/2021] [Indexed: 06/13/2023]
Abstract
This article presents a refractive index (RI) nanosensor utilizing gold as the plasmonic material. The layout of the sensor includes metal-insulator-metal (MIM) waveguides coupled with a cog-shaped resonator studded with gold nanorods. At the mid-infrared (MIR) spectrum, the spectral characteristics of the sensor are numerically analyzed employing the finite element method (FEM). Moreover, the refractive index sensing property is thoroughly explored by varying the key parameters, establishing a linear correlation with the transmittance profile. After extensive simulations, the most optimum structure displays the highest sensitivity of 6227.6 nm/RIU. Furthermore, the capability of the proposed device as a temperature sensor is investigated with five different liquids (ethanol, polydimethylsiloxane, toluene, chloroform, and the mixture of toluene and chloroform); among these, chloroform exhibits maximum temperature sensitivity of 6.66 nm/°C. Due to being chemically stable and demonstrating satisfactory performance in RI and temperature sensing, the suggested schematic can be a suitable replacement for silver-based sensors.
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Forsberg P, Hollman P, Karlsson M. High sensitivity infrared spectroscopy with a diamond waveguide on aluminium nitride. Analyst 2021; 146:6981-6989. [PMID: 34661204 DOI: 10.1039/d1an01009c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Mid-infrared waveguide spectroscopy promises highly sensitive detection and characterization of organic molecules. Different material combinations for waveguides and cladding have been demonstrated with promising results, each with its own strengths and weaknesses in terms of sensitivity, transmission window and robustness. In this article we present a 5 μm thick diamond planar waveguide on aluminium nitride cladding, using a new fabrication and polishing method. Diamond has a very wide transmission window in the infrared, and its hardness and high chemical stability allows for chemistries and cleaning protocols that may damage other materials. With an aluminium nitride cladding the waveguide has a useable range between 1000 and 1900 cm-1, which we demonstrate using a tunable quantum cascade laser (QCL). This is a large improvement over silicon dioxide cladding. Compared to previously demonstrated free-standing diamond waveguides, the robustness of the sensor is greatly improved, which allows for a thinner diamond layer and increased sensitivity. The new waveguide was used in a QCL-based optical setup to detect acetone in deuterium oxide and isopropyl alcohol in water. The measurements showed higher sensitivity and lower noise level than previous demonstrations of mid-infrared diamond waveguides, resulting in a two orders of magnitude lower detectable concentration.
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Affiliation(s)
- Pontus Forsberg
- Department of Materials Science and Engineering, Uppsala University, Box 35, 751 03 Uppsala, Sweden.
| | - Patrik Hollman
- Nova Diamant AB, Tryffelvägen 17, 756 46 Uppsala, Sweden
| | - Mikael Karlsson
- Department of Materials Science and Engineering, Uppsala University, Box 35, 751 03 Uppsala, Sweden.
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Govindan R, Banerjee P, Dhania NK, Senapati S. FTIR based approach to study EnaC mechanosensory functions. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2021; 167:79-86. [PMID: 34293339 DOI: 10.1016/j.pbiomolbio.2021.07.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 07/07/2021] [Accepted: 07/14/2021] [Indexed: 10/20/2022]
Abstract
The pulmonary epithelial sodium ion channel (ENaC) is gaining importance for its sodium gating and mechanosensitive roles. The mechano functional studies on ENaC suggest direct molecular interactions between the ENaC protein with cytoskeleton microtubules and other extracellular matrix components. Also, in few mechanotransduction studies, ENaC was shown to respond both to membrane stretch as well as cell volume changes. However, the conformational characteristic of ENaC during sodium and mechano gating are yet to be fully elucidated. Thus obtaining ENaC protein conformational spectrum based on Fourier Transform Infrared Radiation (FTIR) spectroscopy in solution will be useful in predicting the nature of conformational changes occurring during any cell volume changes in an epithelial cell. The conformational spectrum looks promising in studying the disease biology of cystic fibrosis (CF) and CF like conditions that arise due to abnormal ion conductance membrane proteins and subsequent frequent fluid retentions. This review article presents the basics of epithelial ENaC protein as a gated mechanosensor and FTIR for developing fluid dynamics of ENaC protein. This can be applied to develop an ENaC based quantum mechanosensor for the prognosis as well as diagnosis of cystic fibrosis (CF) and allied lung diseases.
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Affiliation(s)
- Rekha Govindan
- Department of Biochemistry, PM Sayeed Calicut University Centre, Andrott, Lakshadweep, 682551, India
| | - Pratibha Banerjee
- Department of Human Genetics & Molecular Medicine, Central University of Punjab, Bathinda, 151401, India
| | - Narender K Dhania
- Department of Human Genetics & Molecular Medicine, Central University of Punjab, Bathinda, 151401, India.
| | - Sabyasachi Senapati
- Department of Human Genetics & Molecular Medicine, Central University of Punjab, Bathinda, 151401, India
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Mekawy A, Alù A. Hyperbolic surface wave propagation in mid-infrared metasurfaces with extreme anisotropy. JPHYS PHOTONICS 2021. [DOI: 10.1088/2515-7647/abfecc] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Hyperbolic metasurfaces are characterized by an extreme anisotropy of their effective conductivity tensor, which may be induced at visible frequencies by sculpting metals at the subwavelength scale. In this work, we explore practical implementations of hyperbolic metasurfaces at mid-infrared wavelengths, exploiting devices composed of metals and high-index semiconductor materials, which can support the required field confinement and extreme anisotropy required to realize low loss hyperbolic surface waves. In particular, we discuss the role of broken symmetries in these hybrid metasurfaces to enable large and broadband hyperbolic responses spanning the entire mid-infrared wavelength range (3–30 μm). Our findings pave the way to the development of large scale nanophotonic devices to manipulate mid-infrared light, with applications in nonlinear optics due to the high field confinement, light routing at the nanoscale, thermal control and management, and sub diffraction imaging.
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Kazarian SG. Perspectives on infrared spectroscopic imaging from cancer diagnostics to process analysis. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 251:119413. [PMID: 33461133 DOI: 10.1016/j.saa.2020.119413] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/28/2020] [Accepted: 12/30/2020] [Indexed: 05/20/2023]
Abstract
This perspective paper discusses the recent and potential developments in the application of infrared spectroscopic imaging, with a focus on Fourier transform infrared (FTIR) spectroscopic imaging. The current state-of-the-art has been briefly reported, that includes recent trends and advances in applications of FTIR spectroscopic imaging to biomedical systems. Here, some new opportunities for research in the biomedical field, particularly for cancer diagnostics, and also in the engineering field of process analysis; as well as challenges in FTIR spectroscopic imaging are discussed. Current and future prospects that will bring spectroscopic imaging technologies to the frontier of advanced medical diagnostics and to process analytics in engineering applications will be outlined in this opinion paper.
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Affiliation(s)
- Sergei G Kazarian
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom.
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Baillieul M, Baudet E, Michel K, Moreau J, Němec P, Boukerma K, Colas F, Charrier J, Bureau B, Rinnert E, Nazabal V. Toward Chalcogenide Platform Infrared Sensor Dedicated to the In Situ Detection of Aromatic Hydrocarbons in Natural Waters via an Attenuated Total Reflection Spectroscopy Study. SENSORS 2021; 21:s21072449. [PMID: 33918118 PMCID: PMC8036779 DOI: 10.3390/s21072449] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 03/18/2021] [Accepted: 03/26/2021] [Indexed: 11/16/2022]
Abstract
The objective of this study is to demonstrate the successful functionalization of the surface of a chalcogenide infrared waveguide with the ultimate goal of developing an infrared micro-sensor device. First, a polyisobutylene coating was selected by testing its physico-chemical compatibility with a Ge-Sb-Se selenide surface. To simulate the chalcogenide platform infrared sensor, the detection of benzene, toluene, and ortho-, meta- and para-xylenes was efficaciously performed using a polyisobutylene layer spin-coated on 1 and 2.5 µm co-sputtered selenide films of Ge28Sb12Se60 composition deposited on a zinc selenide prism used for attenuated total reflection spectroscopy. The thickness of the polymer coating was optimized by attenuated total reflection spectroscopy to achieve the highest possible attenuation of water absorption while maintaining the diffusion rate of the pollutant through the polymer film compatible with the targeted in situ analysis. Then, natural water, i.e., groundwater, wastewater, and seawater, was sampled for detection measurement by means of attenuated total reflection spectroscopy. This study is a valuable contribution concerning the functionalization by a hydrophobic polymer compatible with a chalcogenide optical sensor designed to operate in the mid-infrared spectral range to detect in situ organic molecules in natural water.
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Affiliation(s)
- Marion Baillieul
- Institut des Sciences Chimiques de Rennes, UMR-CNRS 6226, Equipe Verres et Céramiques, Université de Rennes 1, 35042 Rennes, France; (M.B.); (E.B.); (B.B.)
- IFREMER, Centre Bretagne, Laboratoire Détection, Capteurs et Mesures, CS10070, 29280 Plouzané, France; (J.M.); (K.B.); (F.C.); (E.R.)
| | - Emeline Baudet
- Institut des Sciences Chimiques de Rennes, UMR-CNRS 6226, Equipe Verres et Céramiques, Université de Rennes 1, 35042 Rennes, France; (M.B.); (E.B.); (B.B.)
| | - Karine Michel
- BRGM, Direction Eau, Environnement et Ecotechnologies, Unité Bio-Géochimie Environnementale et Qualité de l’Eau, 45060 Orléans, France;
| | - Jonathan Moreau
- IFREMER, Centre Bretagne, Laboratoire Détection, Capteurs et Mesures, CS10070, 29280 Plouzané, France; (J.M.); (K.B.); (F.C.); (E.R.)
| | - Petr Němec
- Department of Graphic Arts and Photophysics, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 53210 Pardubice, Czech Republic;
| | - Kada Boukerma
- IFREMER, Centre Bretagne, Laboratoire Détection, Capteurs et Mesures, CS10070, 29280 Plouzané, France; (J.M.); (K.B.); (F.C.); (E.R.)
| | - Florent Colas
- IFREMER, Centre Bretagne, Laboratoire Détection, Capteurs et Mesures, CS10070, 29280 Plouzané, France; (J.M.); (K.B.); (F.C.); (E.R.)
| | - Joël Charrier
- FOTON-UMR-CNRS 6082, ENSSAT BP80518, 22305 Lannion, France;
| | - Bruno Bureau
- Institut des Sciences Chimiques de Rennes, UMR-CNRS 6226, Equipe Verres et Céramiques, Université de Rennes 1, 35042 Rennes, France; (M.B.); (E.B.); (B.B.)
| | - Emmanuel Rinnert
- IFREMER, Centre Bretagne, Laboratoire Détection, Capteurs et Mesures, CS10070, 29280 Plouzané, France; (J.M.); (K.B.); (F.C.); (E.R.)
| | - Virginie Nazabal
- Institut des Sciences Chimiques de Rennes, UMR-CNRS 6226, Equipe Verres et Céramiques, Université de Rennes 1, 35042 Rennes, France; (M.B.); (E.B.); (B.B.)
- Correspondence:
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Consani C, Dubois F, Auböck G. Figures of merit for mid-IR evanescent-wave absorption sensors and their simulation by FEM methods. OPTICS EXPRESS 2021; 29:9723-9736. [PMID: 33820126 DOI: 10.1364/oe.415825] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 02/15/2021] [Indexed: 06/12/2023]
Abstract
Proper optimization of a photonic structure for sensing applications is of extreme importance for integrated sensor design. Here we discuss on the definition of suitable parameters to determine the impact of photonic structure designs for evanescent-wave absorption sensors on the achievable resolution and sensitivity. In particular, we analyze the most widespread quantities used to classify photonic structures in the context of sensing, namely the evanescent-field ratio (or evanescent power factor) and the confinement factor Γ. We show that, somewhat counterintuitively, the confinement factor is the only parameter that can reliably describe the absorption of the evanescent-field in the surrounding medium, and, by quantifying the discrepancy between the two parameters for a set of realistic photonic structures, we demonstrate that using the evanescent-field ratio can lead to a wrong classification of the performance of different structures for absorption sensing. We finally discuss the most convenient simulation strategies to retrieve the confinement factor by FEM simulations.
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14
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Rosenfeld LM, Sulway DA, Sinclair GF, Anant V, Thompson MG, Rarity JG, Silverstone JW. Mid-infrared quantum optics in silicon. OPTICS EXPRESS 2020; 28:37092-37102. [PMID: 33379550 DOI: 10.1364/oe.386615] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 09/25/2020] [Indexed: 06/12/2023]
Abstract
Applied quantum optics stands to revolutionise many aspects of information technology, provided performance can be maintained when scaled up. Silicon quantum photonics satisfies the scaling requirements of miniaturisation and manufacturability, but at 1.55 µm it suffers from problematic linear and nonlinear loss. Here we show that, by translating silicon quantum photonics to the mid-infrared, a new quantum optics platform is created which can simultaneously maximise manufacturability and miniaturisation, while reducing loss. We demonstrate the necessary platform components: photon-pair generation, single-photon detection, and high-visibility quantum interference, all at wavelengths beyond 2 µm. Across various regimes, we observe a maximum net coincidence rate of 448 ± 12 Hz, a coincidence-to-accidental ratio of 25.7 ± 1.1, and, a net two-photon quantum interference visibility of 0.993 ± 0.017. Mid-infrared silicon quantum photonics will bring new quantum applications within reach.
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15
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Mittal V, Devitt G, Nedeljkovic M, Carpenter LG, Chong HMH, Wilkinson JS, Mahajan S, Mashanovich GZ. Ge on Si waveguide mid-infrared absorption spectroscopy of proteins and their aggregates. BIOMEDICAL OPTICS EXPRESS 2020; 11:4714-4722. [PMID: 32923073 PMCID: PMC7449756 DOI: 10.1364/boe.398013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/19/2020] [Accepted: 07/21/2020] [Indexed: 06/11/2023]
Abstract
Specific proteins and their aggregates form toxic amyloid plaques and neurofibrillary tangles in the brains of people suffering from neurodegenerative diseases such as Alzheimer's and Parkinson's. It is important to study these conformational changes to identify and differentiate these diseases at an early stage so that timely medication is provided to patients. Mid-infrared spectroscopy can be used to monitor these changes by studying the line-shapes and the relative absorbances of amide bands present in proteins. This work focusses on the spectroscopy of the protein, Bovine Serum Albumin as an exemplar, and its aggregates using germanium on silicon waveguides in the 1900-1000 cm-1 (5.3-10.0 µm) spectral region.
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Affiliation(s)
- Vinita Mittal
- Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ, United Kingdom
| | - George Devitt
- Institute for Life Sciences, University of Southampton, Southampton, SO17 1BJ, United Kingdom
| | - Milos Nedeljkovic
- Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ, United Kingdom
| | - Lewis G. Carpenter
- Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ, United Kingdom
| | - Harold M. H. Chong
- School of Electronics and Computer Science, University of Southampton, Southampton, SO17 1BJ, United Kingdom
| | - James S. Wilkinson
- Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ, United Kingdom
- Institute for Life Sciences, University of Southampton, Southampton, SO17 1BJ, United Kingdom
| | - Sumeet Mahajan
- Institute for Life Sciences, University of Southampton, Southampton, SO17 1BJ, United Kingdom
- School of Chemistry, University of Southampton, Southampton, SO17 1BJ, United Kingdom
| | - Goran Z. Mashanovich
- Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ, United Kingdom
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16
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Beć KB, Grabska J, Huck CW. Biomolecular and bioanalytical applications of infrared spectroscopy - A review. Anal Chim Acta 2020; 1133:150-177. [PMID: 32993867 DOI: 10.1016/j.aca.2020.04.015] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 04/05/2020] [Accepted: 04/06/2020] [Indexed: 12/11/2022]
Abstract
Infrared (IR; or mid-infrared, MIR; 4000-400 cm-1; 2500-25,000 nm) spectroscopy has become one of the most powerful and versatile tools at the disposal of modern bioscience. Because of its high molecular specificity, applicability to wide variety of samples, rapid measurement and non-invasivity, IR spectroscopy forms a potent approach to elucidate qualitative and quantitative information from various kinds of biological material. For these reasons, it became an established bioanalytical technique with diverse applications. This work aims to be a comprehensive and critical review of the recent accomplishments in the field of biomolecular and bioanalytical IR spectroscopy. That progress is presented on a wider background, with fundamental characteristics, the basic principles of the technique outlined, and its scientific capability directly compared with other methods being used in similar fields (e.g. near-infrared, Raman, fluorescence). The article aims to present a complete examination of the topic, as it touches the background phenomena, instrumentation, spectra processing and data analytical methods, spectra interpretation and related information. To suit this goal, the article includes a tutorial information essential to obtain a thorough perspective of bio-related applications of the reviewed methodologies. The importance of the fundamental factors to the final performance and applicability of IR spectroscopy in various areas of bioscience is explained. This information is interpreted in critical way, with aim to gain deep understanding why IR spectroscopy finds extraordinarily intensive use in this remarkably diverse and dynamic field of research and utility. The major focus is placed on the diversity of the applications in which IR biospectroscopy has been established so far and those onto which it is expanding nowadays. This includes qualitative and quantitative analytical spectroscopy, spectral imaging, medical diagnosis, monitoring of biophysical processes, and studies of physicochemical properties and dynamics of biomolecules. The application potential of IR spectroscopy in light of the current accomplishments and the future prospects is critically evaluated and its significance in the progress of bioscience is comprehensively presented.
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Affiliation(s)
- Krzysztof B Beć
- Institute of Analytical Chemistry and Radiochemistry, Center for Chemistry and Biomedicine, University of Innsbruck, Innrain 80/82, A-6020, Innsbruck, Austria.
| | - Justyna Grabska
- Institute of Analytical Chemistry and Radiochemistry, Center for Chemistry and Biomedicine, University of Innsbruck, Innrain 80/82, A-6020, Innsbruck, Austria
| | - Christian W Huck
- Institute of Analytical Chemistry and Radiochemistry, Center for Chemistry and Biomedicine, University of Innsbruck, Innrain 80/82, A-6020, Innsbruck, Austria.
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17
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Bomers M, Charlot B, Barho F, Chanuel A, Mezy A, Cerutti L, Gonzalez-Posada F, Taliercio T. Microfluidic surface-enhanced infrared spectroscopy with semiconductor plasmonics for the fingerprint region. REACT CHEM ENG 2020. [DOI: 10.1039/c9re00350a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
III–V semiconductor plasmonics enables to perform microfluidic surface-enhanced mid-IR spectroscopy and to access the so-called molecular fingerprint region from 6.7 μm to 20 μm (1500–500 cm−1).
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Affiliation(s)
- Mario Bomers
- IES
- Université de Montpellier
- CNRS
- Montpellier
- France
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18
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Lozeman JJA, Führer P, Olthuis W, Odijk M. Spectroelectrochemistry, the future of visualizing electrode processes by hyphenating electrochemistry with spectroscopic techniques. Analyst 2020; 145:2482-2509. [DOI: 10.1039/c9an02105a] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reviewing the future of electrochemistry combined with infrared, Raman, and nuclear magnetic resonance spectroscopy as well as mass spectrometry.
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Affiliation(s)
- Jasper J. A. Lozeman
- BIOS Lab-on-a-Chip Group
- MESA+ Institute
- University of Twente
- 7522 NB Enschede
- The Netherlands
| | - Pascal Führer
- BIOS Lab-on-a-Chip Group
- MESA+ Institute
- University of Twente
- 7522 NB Enschede
- The Netherlands
| | - Wouter Olthuis
- BIOS Lab-on-a-Chip Group
- MESA+ Institute
- University of Twente
- 7522 NB Enschede
- The Netherlands
| | - Mathieu Odijk
- BIOS Lab-on-a-Chip Group
- MESA+ Institute
- University of Twente
- 7522 NB Enschede
- The Netherlands
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19
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Popa D, Ali SZ, Hopper R, Dai Y, Udrea F. Smart CMOS mid-infrared sensor array. OPTICS LETTERS 2019; 44:4111-4114. [PMID: 31465341 DOI: 10.1364/ol.44.004111] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 07/15/2019] [Indexed: 05/26/2023]
Abstract
We present a novel single-chip thermopile sensor array for mid-infrared room temperature imaging. The array is fabricated on a single complementary metal-oxide-semiconductor (CMOS) dielectric membrane, composed of single-crystal silicon (Si) p+ and n+ elements, and standard CMOS tungsten metal layers for thermopile cold junction heatsinking, significantly reducing the chip size and simplifying its processing. We demonstrate a 16×16 pixel device with 34 V/W responsivity and enhanced optical absorption in the 8-14 μm waveband, with a suitable performance for gesture recognition and people-counting applications. Our simple, low-cost sensor is an attractive on-chip array for a variety of applications in the mid-infrared spectral region.
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20
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Xue M, Zheng Q, Chen R, Bao L, Du S, Chen J. Tin diselenide van der Waals materials as new candidates for mid-infrared waveguide chips. NANOSCALE 2019; 11:14113-14117. [PMID: 31334738 DOI: 10.1039/c9nr04264d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Mid-infrared is a spectral region of molecular vibration and rotation modes and thus, it has been widely used in chem/bio analysis. On-chip MIR waveguides combining attenuated total reflection spectroscopy provide an efficient way to minimize equipment size and benefit chemical trace analysis. But, inevitable surface roughness-induced scattering is harmful for waveguide mode propagation in traditional sensors. Two-dimensional materials are natural thin slabs with atomic-scale smooth surfaces and thus could be excellent for building weak surface scattering waveguides. Here, we used near-field microscopy to investigate a waveguide mode of 1T tin diselenide slabs at nanoscale resolution in 5.13-6.57 μm and manipulate the mode strengths and wavelengths by controlling the slab thickness. This work extends two-dimensional materials as building blocks for integrated MIR chips.
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Affiliation(s)
- Mengfei Xue
- Institute of Physics, Chinese Academy of Sciences and Beijing National Laboratory for Condensed Matter Physics, P.O. Box 603, Beijing, 100190, China
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21
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Alimagham F, Platkov M, Prestage J, Basov S, Izakson G, Katzir A, Elliott SR, Hutter T. Mid-IR evanescent-field fiber sensor with enhanced sensitivity for volatile organic compounds. RSC Adv 2019; 9:21186-21191. [PMID: 35521343 PMCID: PMC9066189 DOI: 10.1039/c9ra04104d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 06/28/2019] [Indexed: 11/23/2022] Open
Abstract
The increasing awareness of the harsh environmental and health risks associated with air pollution has placed volatile organic compounds (VOCs) sensor technologies in elevated demand. While the currently available VOC-monitoring technologies are either bulky and expensive, or only capable of measuring a total VOC concentration, the selective detection of VOCs in the gas-phase remains a challenge. To overcome this, a novel method and device based on mid-IR evanescent-wave fiber-optic spectroscopy, which enables enhanced detection of VOCs, is hereby proposed. This is achieved by increasing the number of analyte molecules in the proximity of the evanescent field via capillary condensation inside nano-porous microparticles coated on the fiber surface. The nano-porous structure of the coating allows the VOC analytes to rapidly diffuse into the pores and become concentrated at the surface of the fiber, thereby allowing the utilization of highly sensitive evanescent-wave spectroscopy. To ascertain the effectiveness and performance of the sensor, different VOCs are measured, and the enhanced sensitivity is analyzed using a custom-built gas cell. According to the results presented here, our VOC sensor shows a significantly increased sensitivity compared to that of an uncoated fiber.
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Affiliation(s)
- Farah Alimagham
- Department of Chemistry, University of Cambridge Cambridge CB2 1EW UK
| | - Max Platkov
- Nuclear Research Center Negev Beer-Sheva 84190 Israel
| | | | - Svetlana Basov
- Department of Biomedical Engineering, The Aby and Aladar Fleischman Faculty of Engineering, Tel-Aviv University Tel-Aviv 69987 Israel
| | - Gregory Izakson
- Raymond and Beverly Sackler Faculty of Exact Science, School of Physics and Astronomy, Tel-Aviv University Tel-Aviv 69987 Israel
| | - Abraham Katzir
- Raymond and Beverly Sackler Faculty of Exact Science, School of Physics and Astronomy, Tel-Aviv University Tel-Aviv 69987 Israel
| | - Stephen R Elliott
- Department of Chemistry, University of Cambridge Cambridge CB2 1EW UK
| | - Tanya Hutter
- Department of Chemistry, University of Cambridge Cambridge CB2 1EW UK
- SensorHut Ltd Cambridge CB2 9DN UK
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22
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Popa D, Udrea F. Towards Integrated Mid-Infrared Gas Sensors. SENSORS 2019; 19:s19092076. [PMID: 31060244 PMCID: PMC6539445 DOI: 10.3390/s19092076] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 04/30/2019] [Accepted: 05/01/2019] [Indexed: 12/21/2022]
Abstract
Optical gas sensors play an increasingly important role in many applications. Sensing techniques based on mid-infrared absorption spectroscopy offer excellent stability, selectivity and sensitivity, for numerous possibilities expected for sensors integrated into mobile and wearable devices. Here we review recent progress towards the miniaturization and integration of optical gas sensors, with a focus on low-cost and low-power consumption devices.
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Affiliation(s)
- Daniel Popa
- Department of Engineering, University of Cambridge, Cambridge CB3 0FA, UK.
| | - Florin Udrea
- Department of Engineering, University of Cambridge, Cambridge CB3 0FA, UK.
- ams Sensors UK Limited, Cambridge CB4 0DL, UK.
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23
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Fujigaki T, Takagi S, Takenaka M. High-efficiency Ge thermo-optic phase shifter on Ge-on-insulator platform. OPTICS EXPRESS 2019; 27:6451-6458. [PMID: 30876230 DOI: 10.1364/oe.27.006451] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 01/17/2019] [Indexed: 06/09/2023]
Abstract
We report on a Ge thermo-optic (TO) phase shifter on a Ge-on-insulator (GeOI) platform for mid-infrared (MIR) integrated photonics. Numerical analysis showed that the Ge TO phase shifter can realize three times higher modulation efficiency than a Si TO phase shifter, owing to the large TO coefficient and refractive index of Ge. The Ge TO phase shifter, operating at a wavelength of 1.95 μm fabricated on a GeOI wafer, achieved an operating power of 7.8 mW for a phase shift of π, which was less than half of that in a previously reported Si TO phase shifter operating at a wavelength of 1.55 μm. Thus, the Ge TO phase shifter is promising for high-performance and low-power MIR photonic integrated circuits for various sensing and communication applications.
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24
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Beć KB, Huck CW. Breakthrough Potential in Near-Infrared Spectroscopy: Spectra Simulation. A Review of Recent Developments. Front Chem 2019; 7:48. [PMID: 30854368 PMCID: PMC6396078 DOI: 10.3389/fchem.2019.00048] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 01/18/2019] [Indexed: 11/29/2022] Open
Abstract
Near-infrared (12,500–4,000 cm−1; 800–2,500 nm) spectroscopy is the hallmark for one of the most rapidly advancing analytical techniques over the last few decades. Although it is mainly recognized as an analytical tool, near-infrared spectroscopy has also contributed significantly to physical chemistry, e.g., by delivering invaluable data on the anharmonic nature of molecular vibrations or peculiarities of intermolecular interactions. In all these contexts, a major barrier in the form of an intrinsic complexity of near-infrared spectra has been encountered. A large number of overlapping vibrational contributions influenced by anharmonic effects create complex patterns of spectral dependencies, in many cases hindering our comprehension of near-infrared spectra. Quantum mechanical calculations commonly serve as a major support to infrared and Raman studies; conversely, near-infrared spectroscopy has long been hindered in this regard due to practical limitations. Advances in anharmonic theories in hyphenation with ever-growing computer technology have enabled feasible theoretical near-infrared spectroscopy in recent times. Accordingly, a growing number of quantum mechanical investigations aimed at near-infrared region has been witnessed. The present review article summarizes these most recent accomplishments in the emerging field. Applications of generalized approaches, such as vibrational self-consistent field and vibrational second order perturbation theories as well as their derivatives, and dense grid-based studies of vibrational potential, are overviewed. Basic and applied studies are discussed, with special attention paid to the ones which aim at improving analytical spectroscopy. A remarkable potential arises from the growing applicability of anharmonic computations to solving the problems which arise in both basic and analytical near-infrared spectroscopy. This review highlights an increased value of quantum mechanical calculations to near-infrared spectroscopy in relation to other kinds of vibrational spectroscopy.
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Affiliation(s)
- Krzysztof B Beć
- Center for Chemistry and Biomedicine, Institute of Analytical Chemistry and Radiochemistry, Leopold-Franzens University, Innsbruck, Austria
| | - Christian W Huck
- Center for Chemistry and Biomedicine, Institute of Analytical Chemistry and Radiochemistry, Leopold-Franzens University, Innsbruck, Austria
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25
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Tran NL, Malerba M, Talneau A, Biasiol G, Ouznali O, Bousseksou A, Manceau JM, Colombelli R. III-V on CaF 2: a possible waveguiding platform for mid-IR photonic devices. OPTICS EXPRESS 2019; 27:1672-1682. [PMID: 30696229 DOI: 10.1364/oe.27.001672] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 12/13/2018] [Indexed: 06/09/2023]
Abstract
We developed a technique that enables replacement of a metallic waveguide cladding with a low-index (n≈1.4) material - CaF2 or BaF2. It is transparent from the mid-IR up to the visible range: elevated confinement is preserved while introducing an optical entryway through the substrate. Replacing the metallic backplane also allows double-side patterning of the active region. Using this approach, we demonstrate strong light-matter coupling between an intersubband transition (λ∼10 μm) and a dispersive resonator at 300 K and at 78 K. Finally, we evaluate this approach's potential as a platform for waveguiding in the mid-IR spectral range, with numerical simulations that reveal losses in the 1-10 cm-1 range.
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26
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Haas J, Artmann P, Mizaikoff B. Mid-infrared GaAs/AlGaAs micro-ring resonators characterized via thermal tuning. RSC Adv 2019; 9:8594-8599. [PMID: 35518680 PMCID: PMC9061883 DOI: 10.1039/c8ra10395j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 03/05/2019] [Indexed: 11/21/2022] Open
Abstract
Micro-ring resonators with a decoupling waveguide have been fabricated from thin-film GaAs/Al0.2Ga0.8As waveguides accommodating mid-infrared wavelengths, and were characterized in detail via thermal tuning.
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Affiliation(s)
- Julian Haas
- Institute of Analytical and Bioanalytical Chemistry
- Ulm University
- D-89081 Ulm
- Germany
| | - Philipp Artmann
- Institute of Analytical and Bioanalytical Chemistry
- Ulm University
- D-89081 Ulm
- Germany
| | - Boris Mizaikoff
- Institute of Analytical and Bioanalytical Chemistry
- Ulm University
- D-89081 Ulm
- Germany
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27
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Osman A, Nedeljkovic M, Soler Penades J, Wu Y, Qu Z, Khokhar AZ, Debnath K, Mashanovich GZ. Suspended low-loss germanium waveguides for the longwave infrared. OPTICS LETTERS 2018; 43:5997-6000. [PMID: 30547989 DOI: 10.1364/ol.43.005997] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 10/30/2018] [Indexed: 06/09/2023]
Abstract
Germanium is a material of high interest for mid-infrared (MIR) integrated photonics due to its complementary metal-oxide-semiconductor (CMOS) compatibility and its wide transparency window covering the 2-15 μm spectral region exceeding the 4 and 8 μm limit of the silicon-on-insulator platform and Si material, respectively. In this Letter, we report suspended germanium waveguides operating at a wavelength of 7.67 μm with a propagation loss of 2.6±0.3 dB/cm. To the best of our knowledge, this is the first demonstration of low-loss suspended germanium waveguides at such a long wavelength. Suspension of the waveguide is achieved by defining holes alongside the core providing access to the buried oxide layer and the underlying Si layer so that they can be wet etched using hydrofluoric acid and tetramethylammonium hydroxide, respectively. Our MIR waveguides create a new path toward long wavelength sensing in the fingerprint region.
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28
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Morhart TA, Read S, Wells G, Jacobs M, Rosendahl SM, Achenbach S, Burgess IJ. Attenuated Total Reflection Fourier Transform Infrared (ATR FT-IR) Spectromicroscopy Using Synchrotron Radiation and Micromachined Silicon Wafers for Microfluidic Applications. APPLIED SPECTROSCOPY 2018; 72:1781-1789. [PMID: 29893584 DOI: 10.1177/0003702818785640] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A custom-designed optical configuration compatible with the use of micromachined multigroove internal reflection elements (μ-groove IREs) for attenuated total reflectance Fourier transform infrared (ATR FT-IR) spectroscopy and imaging applications in microfluidic devices is described. The μ-groove IREs consist of several face-angled grooves etched into a single, monolithic silicon chip. The optical configuration permits individual grooves to be addressed by focusing synchrotron sourced IR light through a 150 µm pinhole aperture, restricting the beam spot size to a dimension smaller than that of the groove walls. The effective beam spot diameter at the ATR sampling plane is determined through deconvolution of the measured detector response and found to be 70 µm. The μ-groove IREs are highly compatible with standard photolithographic techniques as demonstrated by printing a 400 µm wide channel in an SU-8 film spin-coated on the IRE surface. Attenuated total reflection FT-IR mapping as a function of sample position across the channel illustrates the potential application of this approach for rapid prototyping of microfluidic devices.
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Affiliation(s)
- Tyler A Morhart
- Department of Chemistry, University of Saskatchewan, Saskatoon, SK, Canada
| | - Stuart Read
- Canadian Light Source, Saskatoon, SK, Canada
| | - Garth Wells
- Canadian Light Source, Saskatoon, SK, Canada
| | | | | | - Sven Achenbach
- Department of Electrical and Computer Engineering, University of Saskatchewan, Saskatoon, SK, Canada
| | - Ian J Burgess
- Department of Chemistry, University of Saskatchewan, Saskatoon, SK, Canada
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29
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Chen N, Dong B, Luo X, Wang H, Singh N, Lo GQ, Lee C. Efficient and broadband subwavelength grating coupler for 3.7 μm mid-infrared silicon photonics integration. OPTICS EXPRESS 2018; 26:26242-26256. [PMID: 30469715 DOI: 10.1364/oe.26.026242] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 08/02/2018] [Indexed: 06/09/2023]
Abstract
A grating coupler is an essential building block for compact and flexible photonics integration. In order to meet the increasing demand of mid-infrared (MIR) integrated photonics for sensitive chemical/gas sensing, we report a silicon-on-insulator (SOI) based MIR subwavelength grating coupler (SWGC) operating in the 3.7 μm wavelength range. We provide the design guidelines of a uniform and apodized SWGC, followed by numerical simulations for design verification. We experimentally demonstrate both types of SWGC. The apodized SWGC enables high coupling efficiency of -6.477 dB/facet with 3 dB bandwidth of 199 nm, whereas the uniform SWGC shows larger 3dB bandwidth of 263.5 nm but slightly lower coupling efficiency of -7.371 dB/facet.
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30
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Wideband Ge-Rich SiGe Polarization-Insensitive Waveguides for Mid-Infrared Free-Space Communications. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8071154] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The recent development of quantum cascade lasers, with room-temperature emission in the mid-infrared range, opened new opportunities for the implementation of ultra-wideband communication systems. Specifically, the mid-infrared atmospheric transparency windows, comprising wavelengths between 3–5 µm and 8–14 µm, have great potential for free-space communications, as they provide a wide unregulated spectrum with low Mie and Rayleigh scattering and reduced background noise. Despite the great efforts devoted to the development of mid-infrared sources and detectors, little attention is dedicated to the management of polarization for signal processing. In this work, we used Ge-rich SiGe alloys to build a wideband and polarization-insensitive mid-infrared photonic platform. We showed that the gradual index change in the SiGe alloys enabled the design of waveguides with remarkably low birefringence, below 2 × 10−4, over ultra-wide wavelength ranges within both atmospheric transparency windows, near wavelengths of 3.5 µm and 9 µm. We also report on the design of a polarization-independent multimode interference device achieving efficient power splitting in an unprecedented 4.5-µm bandwidth at around 10-µm wavelength. The ultra-wideband polarization-insensitive building blocks presented here pave the way for the development of high-performance on-chip photonic circuits for next-generation mid-infrared free-space communication systems.
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31
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Tittl A, Leitis A, Liu M, Yesilkoy F, Choi DY, Neshev DN, Kivshar YS, Altug H. Imaging-based molecular barcoding with pixelated dielectric metasurfaces. Science 2018; 360:1105-1109. [DOI: 10.1126/science.aas9768] [Citation(s) in RCA: 440] [Impact Index Per Article: 73.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 04/13/2018] [Indexed: 12/22/2022]
Abstract
Metasurfaces provide opportunities for wavefront control, flat optics, and subwavelength light focusing. We developed an imaging-based nanophotonic method for detecting mid-infrared molecular fingerprints and implemented it for the chemical identification and compositional analysis of surface-bound analytes. Our technique features a two-dimensional pixelated dielectric metasurface with a range of ultrasharp resonances, each tuned to a discrete frequency; this enables molecular absorption signatures to be read out at multiple spectral points, and the resulting information is then translated into a barcode-like spatial absorption map for imaging. The signatures of biological, polymer, and pesticide molecules can be detected with high sensitivity, covering applications such as biosensing and environmental monitoring. Our chemically specific technique can resolve absorption fingerprints without the need for spectrometry, frequency scanning, or moving mechanical parts, thereby paving the way toward sensitive and versatile miniaturized mid-infrared spectroscopy devices.
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Xin C, Wu H, Xie Y, Yu S, Zhou N, Shi Z, Guo X, Tong L. CdTe microwires as mid-infrared optical waveguides. OPTICS EXPRESS 2018; 26:10944-10952. [PMID: 29716023 DOI: 10.1364/oe.26.010944] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 04/09/2018] [Indexed: 06/08/2023]
Abstract
Cadmium telluride (CdTe) has been proven to be an attractive mid-infrared (MIR) material with a large refractive index (~2.68 at 4.5 μm) and broadband transparency (~1 to 25 μm). CdTe microwires (MWs) with diameters from a few to about ten micrometers were fabricated by a thermal evaporation process. MIR light was coupled into and guided through individual MWs. Excellent optical waveguiding properties of these MWs are experimentally obtained within MIR spectral range (up to 8.6 μm), with waveguiding losses from 1.3 to 13 dB/cm. Our results show that CdTe MWs can be used as wavelength or subwavelength-width waveguides for MIR microphotonics or circuits.
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Kim Y, Kwon MS. Mid-infrared subwavelength modulator based on grating-assisted coupling of a hybrid plasmonic waveguide mode to a graphene plasmon. NANOSCALE 2017; 9:17429-17438. [PMID: 29104985 DOI: 10.1039/c7nr07045d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This work reports a mid-infrared modulator based on a hybrid plasmonic waveguide with graphene on a grating in its slot region. The modulator utilizes a graphene plasmon for electro-optic tuning in a more practical and effective way than graphene-plasmon-based waveguide devices studied up to now. The hybrid plasmonic waveguide can be easily and efficiently integrated with input and output photonic waveguides. It supports a hybrid plasmonic waveguide mode and a graphene-plasmon-based waveguide mode. Grating-assisted coupling of the former to the latter in it is demonstrated to work successfully even though the two modes have significantly different propagation constants and losses. Theoretical investigation of the modulator shows that the coupling via the grating of length 5.92 μm generates a deep rejection band at a wavelength of 8.014 μm in the transmission spectrum of the output photonic waveguide of the modulator. With the graphene chemical potential tuned between 0.6 eV and 0.65 eV, the transmission at the wavelength is modulated between -27 dB and -1.8 dB. The subwavelength modulator, which may have a large bandwidth and small energy consumption, is expected to play a key role in free-space communications and sensing requiring mid-infrared integrated photonics.
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Affiliation(s)
- Yonghan Kim
- School of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology, 50, UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Republic of Korea.
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Serna S, Vakarin V, Ramirez JM, Frigerio J, Ballabio A, Le Roux X, Vivien L, Isella G, Cassan E, Dubreuil N, Marris-Morini D. Nonlinear Properties of Ge-rich Si 1-xGe x Materials with Different Ge Concentrations. Sci Rep 2017; 7:14692. [PMID: 29116201 PMCID: PMC5677089 DOI: 10.1038/s41598-017-15266-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 10/23/2017] [Indexed: 11/09/2022] Open
Abstract
Silicon photonics is a large volume and large scale integration platform for applications from long-haul optical telecommunications to intra-chip interconnects. Extension to the mid-IR wavelength range is now largely investigated, mainly driven by absorption spectroscopy applications. Germanium (Ge) is particularly compelling as it has a broad transparency window up to 15 µm and a much higher third-order nonlinear coefficient than silicon which is very promising for the demonstration of efficient non-linear optics based active devices. Si1−xGex alloys have been recently studied due to their ability to fine-tune the bandgap and refractive index. The material nonlinearities are very sensitive to any modification of the energy bands, so Si1−xGex alloys are particularly interesting for nonlinear device engineering. We report on the first third order nonlinear experimental characterization of Ge-rich Si1−xGex waveguides, with Ge concentrations x ranging from 0.7 to 0.9. The characterization performed at 1580 nm is compared with theoretical models and a discussion about the prediction of the nonlinear properties in the mid-IR is introduced. These results will provide helpful insights to assist the design of nonlinear integrated optical based devices in both the near- and mid-IR wavelength ranges.
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Affiliation(s)
- Samuel Serna
- Centre de Nanosciences et de Nanotechnologies, CNRS, Univ. Paris-Sud, Université Paris-Saclay, C2N - Orsay, 91405, Orsay cedex, France. .,Laboratoire Charles Fabry, Institut d'Optique Graduate School, CNRS, Université Paris Saclay, 2 Avenue Augustin Fresnel, 91127, Palaiseau cedex, France.
| | - Vladyslav Vakarin
- Centre de Nanosciences et de Nanotechnologies, CNRS, Univ. Paris-Sud, Université Paris-Saclay, C2N - Orsay, 91405, Orsay cedex, France
| | - Joan-Manel Ramirez
- Centre de Nanosciences et de Nanotechnologies, CNRS, Univ. Paris-Sud, Université Paris-Saclay, C2N - Orsay, 91405, Orsay cedex, France
| | - Jacopo Frigerio
- L-NESS, Dipartimento di Fisica, Politecnico di Milano, Polo di Como, Via Anzani 42, 22100, Como, Italy
| | - Andrea Ballabio
- L-NESS, Dipartimento di Fisica, Politecnico di Milano, Polo di Como, Via Anzani 42, 22100, Como, Italy
| | - Xavier Le Roux
- Centre de Nanosciences et de Nanotechnologies, CNRS, Univ. Paris-Sud, Université Paris-Saclay, C2N - Orsay, 91405, Orsay cedex, France
| | - Laurent Vivien
- Centre de Nanosciences et de Nanotechnologies, CNRS, Univ. Paris-Sud, Université Paris-Saclay, C2N - Orsay, 91405, Orsay cedex, France
| | - Giovanni Isella
- L-NESS, Dipartimento di Fisica, Politecnico di Milano, Polo di Como, Via Anzani 42, 22100, Como, Italy
| | - Eric Cassan
- Centre de Nanosciences et de Nanotechnologies, CNRS, Univ. Paris-Sud, Université Paris-Saclay, C2N - Orsay, 91405, Orsay cedex, France
| | - Nicolas Dubreuil
- Laboratoire Charles Fabry, Institut d'Optique Graduate School, CNRS, Université Paris Saclay, 2 Avenue Augustin Fresnel, 91127, Palaiseau cedex, France
| | - Delphine Marris-Morini
- Centre de Nanosciences et de Nanotechnologies, CNRS, Univ. Paris-Sud, Université Paris-Saclay, C2N - Orsay, 91405, Orsay cedex, France
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Troia B, Penades JS, Qu Z, Khokhar AZ, Osman A, Wu Y, Stirling C, Nedeljkovic M, Passaro VMN, Mashanovich GZ. Silicon ring resonator-coupled Mach-Zehnder interferometers for the Fano resonance in the mid-IR. APPLIED OPTICS 2017; 56:8769-8776. [PMID: 29091691 DOI: 10.1364/ao.56.008769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 10/04/2017] [Indexed: 06/07/2023]
Abstract
We present ring resonator (RR)-coupled Mach-Zehnder interferometers (MZIs) based on silicon-on-insulator rib waveguides, operating around the mid-IR wavelength of 3.8 μm. A number of different photonic integrated devices have been designed and fabricated experimentally to obtain the asymmetric Fano resonances in the mid-IR. We have investigated the influence of the coupling efficiency between the RR and the MZI as well as the phase shift between the two arms of the MZI on the Fano-type resonance spectral features, in agreement with theoretical predictions. Finally, wavelength-dependent Fano transmittances have been successfully measured with insertion losses up to ∼1 dB and extinction ratios of ∼20 dB. A slope of sharp Fano resonances as high as -574.6/μm has been achieved and estimated to be 35.5% higher than the slope of single RR Lorentzian-type resonances.
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Bharadwaj V, Courvoisier A, Fernandez TT, Ramponi R, Galzerano G, Nunn J, Booth MJ, Osellame R, Eaton SM, Salter PS. Femtosecond laser inscription of Bragg grating waveguides in bulk diamond. OPTICS LETTERS 2017; 42:3451-3453. [PMID: 28957060 DOI: 10.1364/ol.42.003451] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Accepted: 08/05/2017] [Indexed: 05/25/2023]
Abstract
Femtosecond laser writing is applied to form Bragg grating waveguides in the diamond bulk. Type II waveguides are integrated with a single pulse point-by-point periodic laser modification positioned toward the edge of the waveguide core. These photonic devices, operating in the telecommunications band, allow for simultaneous optical waveguiding and narrowband reflection from a fourth-order grating. This fabrication technology opens the way toward advanced 3D photonic networks in diamond for a range of applications.
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Xiao TH, Zhao Z, Zhou W, Takenaka M, Tsang HK, Cheng Z, Goda K. Mid-infrared germanium photonic crystal cavity. OPTICS LETTERS 2017; 42:2882-2885. [PMID: 28957198 DOI: 10.1364/ol.42.002882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 06/29/2017] [Indexed: 06/07/2023]
Abstract
The mid-infrared (MIR) spectral range holds significant potential for spectroscopic and sensing applications because it encompasses the fingerprint region that unveils the vibrational and rotational signatures of molecules. CMOS-compatible on-chip devices that can achieve strong light-matter interaction in the entire fingerprint region are considered a promising way for such applications, but remain unprecedented. Here we present an on-chip MIR germanium photonic crystal cavity that covers the entire fingerprint region. This is made possible by harnessing a homemade air-cladding germanium platform. Our MIR device creates a new avenue toward integrated nonlinear optics and on-chip biochemical sensing in the fingerprint region.
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Baudet E, Gutierrez-Arroyo A, Baillieul M, Charrier J, Němec P, Bodiou L, Lemaitre J, Rinnert E, Michel K, Bureau B, Adam JL, Nazabal V. Development of an evanescent optical integrated sensor in the mid-infrared for detection of pollution in groundwater or seawater. ACTA ACUST UNITED AC 2017. [DOI: 10.1080/20550308.2017.1338211] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- E. Baudet
- Institut des Sciences Chimiques de Rennes, UMR-CNRS 6226, Equipe Verres et Céramiques, Université de Rennes 1, Rennes, France
| | | | - M. Baillieul
- Institut des Sciences Chimiques de Rennes, UMR-CNRS 6226, Equipe Verres et Céramiques, Université de Rennes 1, Rennes, France
| | - J. Charrier
- FOTON -UMR-CNRS 6082, ENSSAT, Lannion Cedex, France
| | - P. Němec
- Faculty of Chemical Technology, Department of Graphic Arts and Photophysics, University of Pardubice, Pardubice, Czech Republic
| | - L. Bodiou
- FOTON -UMR-CNRS 6082, ENSSAT, Lannion Cedex, France
| | - J. Lemaitre
- FOTON -UMR-CNRS 6082, ENSSAT, Lannion Cedex, France
| | - E. Rinnert
- Laboratoire Détection, Capteurs et Mesures, Dpt. Recherches et Développements Technologiques, IFREMER, Plouzané, France
| | - K. Michel
- BRGM, Direction Eau, Environnement et Ecotechnologies, Unité Bio-Géochimie environnementale et qualité de l’Eau, Orléans, France
| | - B. Bureau
- Institut des Sciences Chimiques de Rennes, UMR-CNRS 6226, Equipe Verres et Céramiques, Université de Rennes 1, Rennes, France
| | - J. L. Adam
- Institut des Sciences Chimiques de Rennes, UMR-CNRS 6226, Equipe Verres et Céramiques, Université de Rennes 1, Rennes, France
| | - V. Nazabal
- Institut des Sciences Chimiques de Rennes, UMR-CNRS 6226, Equipe Verres et Céramiques, Université de Rennes 1, Rennes, France
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Singh N, Casas-Bedoya A, Hudson DD, Read A, Mägi E, Eggleton BJ. Mid-IR absorption sensing of heavy water using a silicon-on-sapphire waveguide. OPTICS LETTERS 2016; 41:5776-5779. [PMID: 27973499 DOI: 10.1364/ol.41.005776] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We demonstrate a compact silicon-on-sapphire (SOS) strip waveguide sensor for mid-IR absorption spectroscopy. This device can be used for gas and liquid sensing, especially to detect chemically similar molecules and precisely characterize extremely absorptive liquids that are difficult to detect by conventional infrared transmission techniques. We reliably measure concentrations up to 0.25% of heavy water (D2O) in a D2O-H2O mixture at its maximum absorption band at around 4 μm. This complementary metal-oxide-semiconductor (CMOS) compatible SOS D2O sensor is promising for applications such as measuring body fat content or detection of coolant leakage in nuclear reactors.
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Leidner L, Stäb J, Adam JT, Gauglitz G. Surface-enhanced infrared absorption studies towards a new optical biosensor. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2016; 7:1736-1742. [PMID: 28144523 PMCID: PMC5238651 DOI: 10.3762/bjnano.7.166] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 10/28/2016] [Indexed: 06/06/2023]
Abstract
Reflectometric interference spectroscopy (RIfS), which is well-established in the visual regime, measures the optical thickness change of a sensitive layer caused, e.g., by binding an analyte. When operated in the mid-infrared range the sensor provides additional information via weak absorption spectra (fingerprints). The originally poor spectra are magnified by surface-enhanced infrared absorption (SEIRA). This is demonstrated using the broad complex fluid water band at 3300 cm-1, which is caused by superposition of symmetric, antisymmetric stretching vibration, and the first overtone of the bending vibration under the influence of H-bonds and Fermi resonance effect. The results are compared with a similar experiment performed with an ATR (attenuated total reflectance) set-up.
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Affiliation(s)
- Lothar Leidner
- Institute of Physical and Theoretical Chemistry (IPTC), Eberhard Karls University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Julia Stäb
- Institute of Physical and Theoretical Chemistry (IPTC), Eberhard Karls University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Jennifer T Adam
- Institute of Physical and Theoretical Chemistry (IPTC), Eberhard Karls University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Günter Gauglitz
- Institute of Physical and Theoretical Chemistry (IPTC), Eberhard Karls University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
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Haas J, Mizaikoff B. Advances in Mid-Infrared Spectroscopy for Chemical Analysis. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2016; 9:45-68. [PMID: 27070183 DOI: 10.1146/annurev-anchem-071015-041507] [Citation(s) in RCA: 118] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Infrared spectroscopy in the 3-20 μm spectral window has evolved from a routine laboratory technique into a state-of-the-art spectroscopy and sensing tool by benefitting from recent progress in increasingly sophisticated spectra acquisition techniques and advanced materials for generating, guiding, and detecting mid-infrared (MIR) radiation. Today, MIR spectroscopy provides molecular information with trace to ultratrace sensitivity, fast data acquisition rates, and high spectral resolution catering to demanding applications in bioanalytics, for example, and to improved routine analysis. In addition to advances in miniaturized device technology without sacrificing analytical performance, selected innovative applications for MIR spectroscopy ranging from process analysis to biotechnology and medical diagnostics are highlighted in this review.
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Affiliation(s)
- Julian Haas
- Institute of Analytical and Bioanalytical Chemistry, Ulm University, 89069 Ulm, Germany;
| | - Boris Mizaikoff
- Institute of Analytical and Bioanalytical Chemistry, Ulm University, 89069 Ulm, Germany;
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