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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Main Authors: Noha Gaber, Ahmad Altayyeb, Sherif A. Soliman, Yasser M. Sabry, Frédéric Marty, Tarik Bourouina
Format: Article
Language:English
Published: MDPI AG 2019-02-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/19/4/944
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author Noha Gaber
Ahmad Altayyeb
Sherif A. Soliman
Yasser M. Sabry
Frédéric Marty
Tarik Bourouina
author_facet Noha Gaber
Ahmad Altayyeb
Sherif A. Soliman
Yasser M. Sabry
Frédéric Marty
Tarik Bourouina
author_sort Noha Gaber
collection DOAJ
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 doaj.art-6104a9a361c34fd8bdb91ec085effe1e2022-12-22T02:57:07ZengMDPI AGSensors1424-82202019-02-0119494410.3390/s19040944s19040944On-Channel Integrated Optofluidic Pressure Sensor with Optically Boosted SensitivityNoha Gaber0Ahmad Altayyeb1Sherif A. Soliman2Yasser M. Sabry3Frédéric Marty4Tarik Bourouina5Center for Nanotechnology, Zewail City of Science and Technology, October Gardens, 6th of October, Giza 12578, EgyptCenter for Nanotechnology, Zewail City of Science and Technology, October Gardens, 6th of October, Giza 12578, EgyptCenter for Nanotechnology, Zewail City of Science and Technology, October Gardens, 6th of October, Giza 12578, EgyptFaculty of Engineering, Ain-Shams University, Cairo 11566, EgyptUniversité Paris-Est, ESIEE Paris, ESYCOM EA 2552, 93162 Noisy-le-Grand, FranceUniversité Paris-Est, ESIEE Paris, ESYCOM EA 2552, 93162 Noisy-le-Grand, FranceA 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.https://www.mdpi.com/1424-8220/19/4/944Fabry–Pérot cavityoptical pressure sensorintegrated microresonatorBragg mirrors
spellingShingle Noha Gaber
Ahmad Altayyeb
Sherif A. Soliman
Yasser M. Sabry
Frédéric Marty
Tarik Bourouina
On-Channel Integrated Optofluidic Pressure Sensor with Optically Boosted Sensitivity
Sensors
Fabry–Pérot cavity
optical pressure sensor
integrated microresonator
Bragg mirrors
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 Fabry–Pérot cavity
optical pressure sensor
integrated microresonator
Bragg mirrors
url https://www.mdpi.com/1424-8220/19/4/944
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AT yassermsabry onchannelintegratedoptofluidicpressuresensorwithopticallyboostedsensitivity
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