Abstract
A new gas sensing technique based on a cavity ring down spectroscopy is proposed. This technique features the hybrid operation for enhancing the sensitivity by amplifying the optical absorption efficiency with a thermal lens (TL) effect. The limit of detection value is a few-fold higher values compared with our previous technique. It is confirmed that this hybrid operation boosted by TL effect functions with “mildly-hybrid”. Additionally, it points out that the structure of sensing head has significant function for assisting a hybrid operation.
© 2023 The Author(s)
PDF ArticleMore Like This
Atsushi Yarai and Takuji Nakanishi
CH_6 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2007
Zhangyong Yang, Chunfu Cheng, Yiwen Ou, Zehao Chen, and Hui Lv
SeTh1E.6 Optical Sensors (Sensors) 2018
Chunfu Cheng, Zhangyong Yang, Yiwen Ou, Ziqiang Li, Chuyun Huang, and Hui Lv
SeW2E.3 Optical Sensors (Sensors) 2017