Hollow-core-fiber-cavity-enhanced stimulated Raman gain spectroscopy for trace hydrogen detection
We demonstrate a hydrogen sensor based on hollow-core fiber cavity-enhanced stimulated Raman gain spectroscopy. Using an 8-cm-long hollow-core fiber cavity with finesse of ~ 300, hydrogen detection with a limit of detection of 62 ppm is achieved with 1 s lock-in time constant.
Authors
- Hoi Lut Ho
- Shoulin Jiang (ORCID: https://orcid.org/0009-0000-4092-0432)
- Shoufei Gao (ORCID: https://orcid.org/0000-0003-2514-7511)
- Junyang Liu (ORCID: https://orcid.org/0000-0002-7252-1900)
- Xiaolin Wang (ORCID: https://orcid.org/0000-0003-2205-2103)
- Haihong Bao (ORCID: https://orcid.org/0000-0003-1650-090X)
- Ming Li (ORCID: https://orcid.org/0000-0002-2289-0222)
- Yingying Wang (ORCID: https://orcid.org/0000-0003-4363-8779)
- Jianan Wang (ORCID: https://orcid.org/0000-0001-5490-074X)
- Feifan Chen (ORCID: https://orcid.org/0000-0001-9687-4674)
- Wei Jin (ORCID: https://orcid.org/0000-0003-4552-5890)
Institutions
- Sinopec (China) (CN)
- Hong Kong Polytechnic University (HK)
Publication Details
- Published
- 2025-05-22
- DOI
- https://doi.org/10.1117/12.3060965
- Primary Topic
- Spectroscopy and Laser Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00