scholarly journals Miniature fiber-optic Fabry-Perot refractive index sensor for gas sensing with a resolution of 5x10−9 RIU

2018 ◽  
Vol 26 (18) ◽  
pp. 23868 ◽  
Author(s):  
Simon Pevec ◽  
Denis Donlagic
Keyword(s):  
Refractive Index ◽  
Fiber Optic ◽  
Gas Sensing ◽  
Refractive Index Sensor ◽  
Fabry Perot

scholarly journals Preparation and Characterization of Microsphere ZnO ALD Coating Dedicated for the Fiber-Optic Refractive Index Sensor

Nanomaterials ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 306 ◽  
Author(s):  
Paulina Listewnik ◽  
Marzena Hirsch ◽  
Przemysław Struk ◽  
Matthieu Weber ◽  
Mikhael Bechelany ◽  
...  
Keyword(s):  
Refractive Index ◽  
Optical Fiber ◽  
Fiber Optic ◽  
Single Mode ◽  
Atomic Layer ◽  
Fiber Optic Sensor ◽  
Refractive Index Sensor ◽  
Layer Deposition ◽  
Fabry Perot

We report the fabrication of a novel fiber-optic sensor device, based on the use of a microsphere conformally coated with a thin layer of zinc oxide (ZnO) by atomic layer deposition (ALD), and its use as a refractive index sensor. The microsphere was prepared on the tip of a single-mode optical fiber, on which a conformal ZnO thin film of 200 nm was deposited using an ALD process based on diethyl zinc (DEZ) and water at 100 °C. The modified fiber-optic microsphere was examined using scanning electron microscopy and Raman spectroscopy. Theoretical modeling has been carried out to assess the structure performance, and the performed experimental measurements carried out confirmed the enhanced sensing abilities when the microsphere was coated with a ZnO layer. The fabricated refractive index sensor was operating in a reflective mode of a Fabry–Pérot configuration, using a low coherent measurement system. The application of the ALD ZnO coating enabled for a better measurement of the refractive index of samples in the range of the refractive index allowed by the optical fiber. The proof-of-concept results presented in this work open prospects for the sensing community and will promote the use of fiber-optic sensing technologies.

scholarly journals Fiber optic microsphere with ZnO thin film for potential application in refractive index sensor – theoretical study

2018 ◽  
Vol 10 (3) ◽  
pp. 85 ◽  
Author(s):  
Marzena Hirsch
Keyword(s):  
Thin Film ◽  
Refractive Index ◽  
Optical Fiber ◽  
Fiber Optic ◽  
Refractive Index Sensor ◽  
Zno Thin Film ◽  
Sensors And Actuators ◽  
Low Coherence ◽  
Refractive Index Sensing ◽  
Fabry Perot

Optical fiber sensors of refractive index play important role in analysis of biological and chemical samples. This work presents a theoretical investigation of a spectral response of fiber optic microsphere with zinc-oxide (ZnO) thin film deposited on the surface and evaluates the prospect of using such structure for refractive index sensing. Microsphere is fabricated by optical fiber tapering method on the base of a single mode fiber. A numerical model is described and simulation was conducted to assess the influence of the ZnO layer deposition on a reflected signal. The results indicate that ZnO film improves the performance in terms of a potential application in refractive index sensor. Full Text: PDF ReferencesY. Qian, Y. Zhao, Q. Wu, Y. Yang, Review of salinity measurement technology based on optical fiber sensor, Sensors and Actuators B: Chemical, 260, 86–105 (2018). CrossRef M. Jędrzejewska-Szczerska, Response of a New Low-Coherence Fabry-Pérot Sensor to Hematocrit Levels in Human Blood, Sensors, 14, 4, 6965–6976, (2014). CrossRef F. Sequeira et al., Refractive Index Sensing with D-Shaped Plastic Optical Fibers for Chemical and Biochemical Applications, Sensors, 16, 12, 2119, (2016). CrossRef M. Jędrzejewska-Szczerska et al., ALD thin ZnO layer as an active medium in a fiber-optic Fabry–Pérot interferometer, Sensors and Actuators A: Physical, 221, 88–94, (2015). CrossRef M. Hirsch, D. Majchrowicz, P. Wierzba, M. Weber, M. Bechelany, M. Jędrzejewska-Szczerska, Low-Coherence Interferometric Fiber-Optic Sensors with Potential Applications as Biosensors, Sensors, 17, 2, 261, (2017). CrossRef M. Hirsch, P. Wierzba, M. Jędrzejewska-Szczerska, Application of thin dielectric films in low coherence fiber-optic Fabry-Pérot sensing interferometers: comparative study, Proc. SPIE 10161, 101610D (2016). CrossRef J. Pluciński, K. Karpienko, Fiber optic Fabry-Pérot sensors: modeling versus measurements results, Proc. SPIE 10034, 100340H (2016). CrossRef F. Goldsmith, Quasioptical systems: Gaussian beam quasioptical propagation and applications. (Piscataway, NJ: IEEE Press 1998). CrossRef

Novel Fabry-Pérot Fiber-Optic Refractive-Index Sensor Based on Laser Micromachining

2008 ◽  
Vol 28 (7) ◽  
pp. 1400-1404
Author(s):  
刘为俊 Liu Weijun ◽  
饶云江 Rao Yunjiang ◽  
冉曾令 Ran Zengling ◽  
廖弦 Liao Xian
Keyword(s):  
Refractive Index ◽  
Fiber Optic ◽  
Laser Micromachining ◽  
Refractive Index Sensor ◽  
Fabry Perot

A Miniature Fiber-Optic Refractive-Index Sensor Based on Laser-Machined Fabry–Perot Interferometer Tip

2009 ◽  
Vol 27 (23) ◽  
pp. 5426-5429 ◽  
Author(s):  
Zengling Ran ◽  
Yunjiang Rao ◽  
Jian Zhang ◽  
Zhiwei Liu ◽  
Bing Xu
Keyword(s):  
Refractive Index ◽  
Fiber Optic ◽  
Refractive Index Sensor ◽  
Fabry Perot

Fiber optic refractive index sensor based on tapered capillary

2021 ◽  
Author(s):  
Cheng Zhang ◽  
Jing Yang ◽  
Guanghuan Cui ◽  
Zheng Sun ◽  
Yafeng Zhao ◽  
...  
Keyword(s):  
Refractive Index ◽  
Fiber Optic ◽  
Refractive Index Sensor

Highly sensitive refractive index sensor for detection of Hg2+ based on Fano-like resonance in metal-dielectric-metal meta-structure

2021 ◽  
Author(s):  
Shuangxiu Yuan ◽  
Xuebo Sun ◽  
Jing Li ◽  
Yan Li ◽  
Fufang Su ◽  
...  
Keyword(s):  
Refractive Index ◽  
Limit Of Detection ◽  
Wavelength Shift ◽  
Refractive Index Sensor ◽  
Large Area ◽  
Amount Of Substance ◽  
Resonance Modes ◽  
Dipole Resonance ◽  
Highly Sensitive ◽  
Fabry Perot

Abstract We experimentally and theoretically investigate Fano-like resonance in large-area Au/SiO2/Au nano-patches meta-structure, which is originating from the coupling between Fabry Perot resonance and magnetic dipole resonance modes. A highly sensitive refractive index sensor based on the lineshape analysis is obtained. The extracted wavelength shift with the amount of substance of Hg2+ changing from 10-3 pmol to 1 nmol has a linear dependence, and the sensitivity can reach to ultra-low limit of detection (LOD) as 10-3 pmol. This study may provide an approach for the development and modification in sensing.

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