High Sensitivity Core-Shell Structure (CSS)-Based Fiber Sensor for Monitoring Analytes in Liquids and Gases

Tianyu Yang, Can Ding, Richard W. Ziolkowski, Y. Jay Guo

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

A compact and robust mid-infrared refractive index-based microstructured fiber sensor with high sensitivity is developed for monitoring analytes in liquids and gases. Resonant core-shell elements facilitate its exceptional performance. The theory underpinning them is explained, and the evolution of the fiber structure is presented. The material choices and details of the microstructure leading to its optimization are described. Simulation results demonstrate that the optimized fiber sensor can readily detect refractive index variations in the range from 1.0 to 1.41 and that its wavelength sensitivities are 2510 and 4303 nm/RIU for analyte detection, respectively, in gases and liquids. It is an excellent candidate for environmental monitoring applications.

Original languageEnglish (US)
Article number9347686
Pages (from-to)3319-3329
Number of pages11
JournalJournal of Lightwave Technology
Volume39
Issue number10
DOIs
StatePublished - May 15 2021

Keywords

  • Fiber characteristic
  • single-polarization singel-mode
  • terahertz

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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