Design and optimization of liquid core optical ring resonator for refractive index sensing

Nai Lin, Lan Jiang, Sumei Wang, Hai Xiao, Yongfeng Lu, Hai Lung Tsai

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

This study performs a detailed theoretical analysis of refractive index (RI) sensors based on whispering gallery modes (WGMs) in liquid core optical ring resonators (LCORRs). Both TE-and TM-polarized WGMs of various orders are considered. The analysis shows that WGMs of higher orders need thicker walls to achieve a near-zero thermal drift, but WGMs of different orders exhibit a similar RI sensing performance at the thermostable wall thicknesses. The RI detection limit is very low at the thermostable thickness. The theoretical predications should provide a general guidance in the development of LCORR-based thermostable RI sensors.

Original languageEnglish (US)
Pages (from-to)3615-3621
Number of pages7
JournalApplied optics
Volume50
Issue number20
DOIs
StatePublished - Jul 10 2011

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Optical resonators
Whispering gallery modes
whispering gallery modes
Refractive index
resonators
refractivity
optimization
rings
Liquids
liquids
thick walls
sensors
Sensors

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

Cite this

Design and optimization of liquid core optical ring resonator for refractive index sensing. / Lin, Nai; Jiang, Lan; Wang, Sumei; Xiao, Hai; Lu, Yongfeng; Tsai, Hai Lung.

In: Applied optics, Vol. 50, No. 20, 10.07.2011, p. 3615-3621.

Research output: Contribution to journalArticle

Lin, Nai ; Jiang, Lan ; Wang, Sumei ; Xiao, Hai ; Lu, Yongfeng ; Tsai, Hai Lung. / Design and optimization of liquid core optical ring resonator for refractive index sensing. In: Applied optics. 2011 ; Vol. 50, No. 20. pp. 3615-3621.
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