A Fiber Optic Fabry–Perot Cavity Sensor for the Probing of Oily Samples
A micro-optical Fabry–Perot cavity fabricated by non-linear laser lithography on the endface of a standard telecom fiber is tested here as a microsensor for identifying oily liquids. The device operates within the 1550 nm spectral region, while the spectra recorded in reflection mode correlate to th...
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MDPI AG
2017-01-01
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Online Access: | http://www.mdpi.com/2079-6439/5/1/1 |
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author | Vasileia Melissinaki Maria Farsari Stavros Pissadakis |
author_facet | Vasileia Melissinaki Maria Farsari Stavros Pissadakis |
author_sort | Vasileia Melissinaki |
collection | DOAJ |
description | A micro-optical Fabry–Perot cavity fabricated by non-linear laser lithography on the endface of a standard telecom fiber is tested here as a microsensor for identifying oily liquids. The device operates within the 1550 nm spectral region, while the spectra recorded in reflection mode correlate to the refractive index of the oily liquids used, as well as, to the diffusion dynamics in the time domain of the oily samples inside the porous photo-polymerized sensing head. The operation of the microresonator sensing probe is explained by using a three-layer Fabry–Perot model and basic diffusion physics to estimate diffusivities for three series of refractive index matching oils with different chemical compositions that had been used in those experiments. The distinct spectro-temporal response of this sensing probe to the different oil samples is demonstrated and discussed. |
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id | doaj.art-64ae00f1da204f948701d70c58001e20 |
institution | Directory Open Access Journal |
issn | 2079-6439 |
language | English |
last_indexed | 2024-04-11T14:11:12Z |
publishDate | 2017-01-01 |
publisher | MDPI AG |
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series | Fibers |
spelling | doaj.art-64ae00f1da204f948701d70c58001e202022-12-22T04:19:41ZengMDPI AGFibers2079-64392017-01-0151110.3390/fib5010001fib5010001A Fiber Optic Fabry–Perot Cavity Sensor for the Probing of Oily SamplesVasileia Melissinaki0Maria Farsari1Stavros Pissadakis2Foundation for Research and Technology-Hellas (FORTH), Institute of Electronic Structure and Laser (IESL), P.O. Box 1385, 71110 Heraklion, GreeceFoundation for Research and Technology-Hellas (FORTH), Institute of Electronic Structure and Laser (IESL), P.O. Box 1385, 71110 Heraklion, GreeceFoundation for Research and Technology-Hellas (FORTH), Institute of Electronic Structure and Laser (IESL), P.O. Box 1385, 71110 Heraklion, GreeceA micro-optical Fabry–Perot cavity fabricated by non-linear laser lithography on the endface of a standard telecom fiber is tested here as a microsensor for identifying oily liquids. The device operates within the 1550 nm spectral region, while the spectra recorded in reflection mode correlate to the refractive index of the oily liquids used, as well as, to the diffusion dynamics in the time domain of the oily samples inside the porous photo-polymerized sensing head. The operation of the microresonator sensing probe is explained by using a three-layer Fabry–Perot model and basic diffusion physics to estimate diffusivities for three series of refractive index matching oils with different chemical compositions that had been used in those experiments. The distinct spectro-temporal response of this sensing probe to the different oil samples is demonstrated and discussed.http://www.mdpi.com/2079-6439/5/1/1optical fiber sensorsFabry–Perot resonatorsporous surfacesoilsdiffusion in porous layersdirect laser writingmulti-photon polymerization |
spellingShingle | Vasileia Melissinaki Maria Farsari Stavros Pissadakis A Fiber Optic Fabry–Perot Cavity Sensor for the Probing of Oily Samples Fibers optical fiber sensors Fabry–Perot resonators porous surfaces oils diffusion in porous layers direct laser writing multi-photon polymerization |
title | A Fiber Optic Fabry–Perot Cavity Sensor for the Probing of Oily Samples |
title_full | A Fiber Optic Fabry–Perot Cavity Sensor for the Probing of Oily Samples |
title_fullStr | A Fiber Optic Fabry–Perot Cavity Sensor for the Probing of Oily Samples |
title_full_unstemmed | A Fiber Optic Fabry–Perot Cavity Sensor for the Probing of Oily Samples |
title_short | A Fiber Optic Fabry–Perot Cavity Sensor for the Probing of Oily Samples |
title_sort | fiber optic fabry perot cavity sensor for the probing of oily samples |
topic | optical fiber sensors Fabry–Perot resonators porous surfaces oils diffusion in porous layers direct laser writing multi-photon polymerization |
url | http://www.mdpi.com/2079-6439/5/1/1 |
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