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

Arun Kumar Mallik; Qiang Wu; Gerald Farrell; Yuliya Semenova

doi:10.1109/WRAP.2015.7805968

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

Arun Kumar Mallik, Qiang Wu, Gerald Farrell, Yuliya Semenova

Mathematics, Physics and Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

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.

Original language	English
Title of host publication	2015 Workshop on Recent Advances in Photonics, WRAP 2015
Publisher	IEEE
Number of pages	4
ISBN (Electronic)	9781509039210
ISBN (Print)	9781509039227
DOIs	https://doi.org/10.1109/WRAP.2015.7805968
Publication status	Published - 4 Jan 2017
Event	2015 Workshop on Recent Advances in Photonics, WRAP 2015 - Bangalore, India Duration: 16 Dec 2015 → 17 Dec 2015

Conference

Conference	2015 Workshop on Recent Advances in Photonics, WRAP 2015
Country/Territory	India
City	Bangalore
Period	16/12/15 → 17/12/15

Keywords

Optical fiber sensors
Optical resonator
Refractive index
Whispering Gallery Mode

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10.1109/WRAP.2015.7805968

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title = "Refractive index sensor based on a silica microsphere whispering gallery mode resonator",

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.",

keywords = "Optical fiber sensors, Optical resonator, Refractive index, Whispering Gallery Mode",

author = "Mallik, {Arun Kumar} and Qiang Wu and Gerald Farrell and Yuliya Semenova",

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doi = "10.1109/WRAP.2015.7805968",

language = "English",

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booktitle = "2015 Workshop on Recent Advances in Photonics, WRAP 2015",

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note = "2015 Workshop on Recent Advances in Photonics, WRAP 2015 ; Conference date: 16-12-2015 Through 17-12-2015",

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TY - GEN

T1 - Refractive index sensor based on a silica microsphere whispering gallery mode resonator

AU - Mallik, Arun Kumar

AU - Wu, Qiang

AU - Farrell, Gerald

AU - Semenova, Yuliya

PY - 2017/1/4

Y1 - 2017/1/4

N2 - 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.

AB - 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.

KW - Optical fiber sensors

KW - Optical resonator

KW - Refractive index

KW - Whispering Gallery Mode

U2 - 10.1109/WRAP.2015.7805968

DO - 10.1109/WRAP.2015.7805968

M3 - Conference contribution

AN - SCOPUS:85015959275

SN - 9781509039227

BT - 2015 Workshop on Recent Advances in Photonics, WRAP 2015

PB - IEEE

T2 - 2015 Workshop on Recent Advances in Photonics, WRAP 2015

Y2 - 16 December 2015 through 17 December 2015

ER -

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

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Keywords

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