Low-coherence photothermal interferometry for ultra-sensitive gas sensing with remarkable stability

Yingzhen Hong, Haihong Bao, Feifan Chen, Shoulin Jiang, Kaiyuan Zheng, Shuangxiang Zhao, Hoi Lut Ho, Shoufei Gao, Yingying Wang, Wei Jin

Research output: Unpublished conference presentation (presented paper, abstract, poster)Conference presentation (not published in journal/proceeding/book)Academic researchpeer-review

Abstract

We demonstrate ultra-sensitive gas detection with remarkable long-term stability using low-coherence photothermal interferometry. With a 10-cm-long hollow-core fiber, we achieve sub-ppb level acetylene detection with stability of ±0.038%, which outperforms the state-of-the-art fiber gas sensors.

Original languageEnglish
DOIs
Publication statusPublished - Nov 2023
Event28th International Conference on Optical Fiber Sensors, OFS 2023 - Naka-ku, Hamamatsu-shi, Japan
Duration: 20 Nov 202324 Nov 2023

Conference

Conference28th International Conference on Optical Fiber Sensors, OFS 2023
Country/TerritoryJapan
CityNaka-ku, Hamamatsu-shi
Period20/11/2324/11/23

ASJC Scopus subject areas

  • General Computer Science
  • Electronic, Optical and Magnetic Materials
  • Space and Planetary Science
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Instrumentation
  • Atomic and Molecular Physics, and Optics

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