Nature Communications (Feb 2020)

Mode-phase-difference photothermal spectroscopy for gas detection with an anti-resonant hollow-core optical fiber

  • Pengcheng Zhao,
  • Yan Zhao,
  • Haihong Bao,
  • Hoi Lut Ho,
  • Wei Jin,
  • Shangchun Fan,
  • Shoufei Gao,
  • Yingying Wang,
  • Pu Wang

DOI
https://doi.org/10.1038/s41467-020-14707-0
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 8

Abstract

Read online

Typically, the performance of the state-of-the-art laser sensors is insufficient for many high precision applications. Here, the authors report mode-phase-difference photothermal spectroscopy with a dual-mode anti-resonant hollow-core optical fiber and demonstrate acetylene detection with ultra-high sensitivity.