Radial-cavity quartz-enhanced photoacoustic spectroscopy

Autor:	Ruifeng Kan, Haoyang Lin, Wenguo Zhu, Qian Wu, Baiyang Antonio Zhou Montano, Zhe Chen, Haohua Lv, Frank K. Tittel, Huadan Zheng, Zhifei Yang, Jianhui Yu, Yihua Liu
Rok vydání:	2021
Předmět:	Optical alignment Materials science Optics business.industry Resonance Laser beam quality business Sensitivity (electronics) Quartz Signal Photoacoustic spectroscopy Atomic and Molecular Physics and Optics Order of magnitude
Zdroj:	Optics Letters. 46:3917
ISSN:	1539-4794 0146-9592
Popis:	Radial-cavity quartz-enhanced photoacoustic spectroscopy (RC-QEPAS) was proposed for trace gas analysis. A radial cavity with (0,0,1) resonance mode was coupled with the quartz tuning fork (QTF) to greatly enhance the QEPAS signal and facilitate the optical alignment. The coupled resonance enhancement effects of the radial cavity and QTF were analyzed theoretically and researched experimentally. With an optimized radial cavity, the detection sensitivity of QEPAS was enhanced by > 1 order of magnitude. The RC-QEPAS makes the acoustic detection module more compact and optical alignment comparable with a bare QFT, benefiting the usage of light sources with poor beam quality.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fe023ecd575fed2fd7cb28f083e69c0 https://doi.org/10.1364/ol.432308 Zobrazit plný text záznamu