Radial-cavity quartz-enhanced photoacoustic spectroscopy | Zendy

Haohua Lv | Zendy; Huadan Zheng | Zendy; Yihua Liu | Zendy; Zhifei Yang | Zendy; Qian Wu | Zendy; Haoyang Lin | Zendy; Baiyang Antonio Zhou Montano | Zendy; Wenguo Zhu | Zendy; Jianhui Yu | Zendy; Ruifeng Kan | Zendy; Zhe Chen | Zendy; Frank K. Tittel | Zendy

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Radial-cavity quartz-enhanced photoacoustic spectroscopy

Author(s) -

Haohua Lv,

Huadan Zheng,

Yihua Liu,

Zhifei Yang,

Qian Wu,

Haoyang Lin,

Baiyang Antonio Zhou Montano,

Wenguo Zhu,

Jianhui Yu,

Ruifeng Kan,

Zhe Chen,

Frank K. Tittel

Publication year - 2021

Publication title -

optics letters

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.432308

Subject(s) - optics , photoacoustic spectroscopy , materials science , spectroscopy , quartz , photoacoustic imaging in biomedicine , cavity ring down spectroscopy , laser , physics , quantum mechanics , composite material

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.

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