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On-Channel Integrated Optofluidic Pressure Sensor with Optically Boosted Sensitivity

A novel optofluidic sensor that measures the local pressure of the fluid inside a microfluidic channel is presented. It can be integrated directly on-channel and requires no additional layers in fabrication. The detection can be accomplished at a single wavelength; and thereby, only a single laser d...

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Autores principales: Gaber, Noha, Altayyeb, Ahmad, Soliman, Sherif A., Sabry, Yasser M., Marty, Frédéric, Bourouina, Tarik
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6413179/
https://www.ncbi.nlm.nih.gov/pubmed/30813389
http://dx.doi.org/10.3390/s19040944
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author Gaber, Noha
Altayyeb, Ahmad
Soliman, Sherif A.
Sabry, Yasser M.
Marty, Frédéric
Bourouina, Tarik
author_facet Gaber, Noha
Altayyeb, Ahmad
Soliman, Sherif A.
Sabry, Yasser M.
Marty, Frédéric
Bourouina, Tarik
author_sort Gaber, Noha
collection PubMed
description A novel optofluidic sensor that measures the local pressure of the fluid inside a microfluidic channel is presented. It can be integrated directly on-channel and requires no additional layers in fabrication. The detection can be accomplished at a single wavelength; and thereby, only a single laser diode and a single photodetector are required. This renders the sensor to be compact, cheap and easy to fabricate. Basically, the sensor consisted of a Fabry–Pérot microresonator enclosing the fluidic channel. A novel structure of the Fabry–Pérot was employed to achieve high-quality factor, that was essential to facilitate the single wavelength detection. The enhanced performance was attributed to the curved mirrors and cylindrical lenses used to avoid light diffraction loss. The presented sensor was fabricated and tested with deionized water liquid and shown to exhibit a sensitivity up to 12.46 dBm/bar, and a detection limit of 8.2 mbar. Numerical simulations are also presented to evaluate the mechanical–fluidic performance of the device.
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spelling pubmed-64131792019-04-03 On-Channel Integrated Optofluidic Pressure Sensor with Optically Boosted Sensitivity Gaber, Noha Altayyeb, Ahmad Soliman, Sherif A. Sabry, Yasser M. Marty, Frédéric Bourouina, Tarik Sensors (Basel) Article A novel optofluidic sensor that measures the local pressure of the fluid inside a microfluidic channel is presented. It can be integrated directly on-channel and requires no additional layers in fabrication. The detection can be accomplished at a single wavelength; and thereby, only a single laser diode and a single photodetector are required. This renders the sensor to be compact, cheap and easy to fabricate. Basically, the sensor consisted of a Fabry–Pérot microresonator enclosing the fluidic channel. A novel structure of the Fabry–Pérot was employed to achieve high-quality factor, that was essential to facilitate the single wavelength detection. The enhanced performance was attributed to the curved mirrors and cylindrical lenses used to avoid light diffraction loss. The presented sensor was fabricated and tested with deionized water liquid and shown to exhibit a sensitivity up to 12.46 dBm/bar, and a detection limit of 8.2 mbar. Numerical simulations are also presented to evaluate the mechanical–fluidic performance of the device. MDPI 2019-02-23 /pmc/articles/PMC6413179/ /pubmed/30813389 http://dx.doi.org/10.3390/s19040944 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Gaber, Noha
Altayyeb, Ahmad
Soliman, Sherif A.
Sabry, Yasser M.
Marty, Frédéric
Bourouina, Tarik
On-Channel Integrated Optofluidic Pressure Sensor with Optically Boosted Sensitivity
title On-Channel Integrated Optofluidic Pressure Sensor with Optically Boosted Sensitivity
title_full On-Channel Integrated Optofluidic Pressure Sensor with Optically Boosted Sensitivity
title_fullStr On-Channel Integrated Optofluidic Pressure Sensor with Optically Boosted Sensitivity
title_full_unstemmed On-Channel Integrated Optofluidic Pressure Sensor with Optically Boosted Sensitivity
title_short On-Channel Integrated Optofluidic Pressure Sensor with Optically Boosted Sensitivity
title_sort on-channel integrated optofluidic pressure sensor with optically boosted sensitivity
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6413179/
https://www.ncbi.nlm.nih.gov/pubmed/30813389
http://dx.doi.org/10.3390/s19040944
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