Optical fiber–Ta2O5 waveguide coupler covered with hydrophobic zeolite film for vapor sensing
| Autor: | B. S. Zafirova, B. Georgieva, M. Vasileva, Julien Grand, Svetlana Mintova, E.I. Karakoleva, Tsvetanka Babeva, Andrey Andreev, J. Koprinarova |
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| Přispěvatelé: | Faculty of Physics [MSU, Moscow], Lomonosov Moscow State University (MSU), Laboratoire catalyse et spectrochimie (LCS), Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut de Chimie du CNRS (INC)-Université de Caen Normandie (UNICAEN), Normandie Université (NU) |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Optical fiber 02 engineering and technology 01 natural sciences law.invention 010309 optics chemistry.chemical_compound Optics law 0103 physical sciences Tantalum pentoxide Materials Chemistry Acetone [CHIM]Chemical Sciences Deposition (phase transition) Electrical and Electronic Engineering Zeolite Instrumentation ComputingMilieux_MISCELLANEOUS business.industry Metals and Alloys 021001 nanoscience & nanotechnology Condensed Matter Physics Optical quality Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry Optoelectronics 0210 nano-technology business Refractive index Waveguide |
| Zdroj: | Sensors and Actuators B: Chemical Sensors and Actuators B: Chemical, Elsevier, 2017, 248, pp.359-366. ⟨10.1016/j.snb.2017.03.157⟩ |
| ISSN: | 0925-4005 |
| Popis: | Coupler comprising side-polished optical fiber and tantalum pentoxide (Ta2O5) waveguide coated with 330 nm hydrophobic MFI-type zeolite films was utilized as chemical sensor for acetone vapors. The thickness of the zeolite films was selected through theoretical modeling of the resonant wavelength shift in order to achieve the highest possible sensitivity. The spectral positions of the resonances were determined through solving of the characteristics equations for the coupled waveguides and finding their mode effective refractive indices. The optical quality of the coupler surface, that is responsible for the proper operation of the device, was controlled through 3D optical imaging prior to and after deposition of the zeolite films. The application of side-polished optical fiber–Ta2O5 waveguide coupler covered with hydrophobic zeolite film for acetone vapor sensing was demonstrated and discussed. |
| Databáze: | OpenAIRE |
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