Scattering enhanced photoacoustic spectroscopy based on the porous materials

Junsheng Ma; Guojie Wu; Haie Li; Zhenfeng Gong; Ke Chen; Liang Mei

doi:10.1117/12.2624831

27 March 2022 Scattering enhanced photoacoustic spectroscopy based on the porous materials

Junsheng Ma, Guojie Wu, Haie Li, Zhenfeng Gong, Ke Chen, Liang Mei

Proceedings Volume 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications; 121696S (2022) https://doi.org/10.1117/12.2624831
Event: Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 2021, Kunming, China

Abstract

In this paper, a new scattering enhanced photoacoustic (PA) spectroscopy (SEPAS) technique is introduced for trace gas detection. The porous materials are used to improve the absorption optical length of trace gas. The working mechanism of photoacoustic signal in porous materials is explained by simulation analysis. Through simulation analysis, the enhancement mechanism of the photoacoustic signal in the porous material is explained, and the experimental results objectively prove that SEPAS can achieve at least three times enhancement of the PA signal. The SEPAS technique proposed in this paper can increase the amplitude of the PA signal and improve the sensitivity of trace gas detection.

Citation Download Citation

Junsheng Ma, Guojie Wu, Haie Li, Zhenfeng Gong, Ke Chen, and Liang Mei "Scattering enhanced photoacoustic spectroscopy based on the porous materials", Proc. SPIE 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 121696S (27 March 2022); https://doi.org/10.1117/12.2624831

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