Refractive index sensor based on a silica microsphere whispering gallery mode resonator

Mallik, Arun Kumar, Wu, Qiang, Farrell, Gerald and Semenova, Yuliya (2017) Refractive index sensor based on a silica microsphere whispering gallery mode resonator. In: WRAP 2015 - 2015 IEEE Workshop on Recent Advances in Photonics, 16th - 17th December 2015, Bangalore, India.

Full text not available from this repository.
Official URL: http://dx.doi.org/10.1109/WRAP.2015.7805968

Abstract

We investigated the excitation of whispering gallery modes (WGMs) in a silica microsphere by evanescent field coupling method using a ∼2 micrometer diameter fiber taper. Based on this configuration we have developed a sensitive refractometric sensor and observed a red-shift of the WGM resonances with the increase of the surrounding medium refractive index. A sensitivity of ∼114 nanometer per RIU has been achieved in the range of refractive indices from 1.3963 to 1.4004.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Whispering Gallery Mode, Optical resonator, Optical fiber sensors, Refractive index
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Paul Burns
Date Deposited: 22 Nov 2018 10:33
Last Modified: 22 Nov 2018 10:33
URI: http://nrl.northumbria.ac.uk/id/eprint/36864

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