Doubly resonant sub-ppt photoacoustic gas detection with eight decades dynamic range

doi:10.1016/j.pacs.2022.100387

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	Doubly resonant sub-ppt photoacoustic gas detection with eight decades dynamic range
	Z. Wang; Q. Wang; H. Zhang; S. Borri; I. Galli; A. Sampaolo; P. Patimisco; V. L. Spagnolo; P. De Natale and W. Ren
	2022
发表期刊	Photoacoustics
ISSN	2213-5979
卷号	27 页码:8
摘要	Photoacoustic spectroscopy (PAS) based gas sensors with high sensitivity, wide dynamic range, low cost, and small footprint are desirable in energy, environment, safety, and public health. However, most works have focused on either acoustic resonator to enhance acoustic wave or optical resonator to enhance optical wave. Herein, we develop a gas sensor based on doubly resonant PAS in which the acoustic and optical waves are simultaneously enhanced using combined optical and acoustic resonators in a centimeter-long configuration. Not only the lower detection limit is enhanced by the double standing waves, but also the upper detection limit is expanded due to the short resonators. As an example, we developed a sensor by detecting acetylene (C2H2), achieving a noise equivalent absorption of 5.7 x 10(-13) cm(-1) and a dynamic range of eight orders. Compared to the state-of-the-art PAS gas sensors, the developed sensor achieves a record sensitivity and dynamic range.
DOI	10.1016/j.pacs.2022.100387
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收录类别	sci ; ei
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/66575
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Z. Wang,Q. Wang,H. Zhang,et al. Doubly resonant sub-ppt photoacoustic gas detection with eight decades dynamic range[J]. Photoacoustics,2022,27:8.
APA	Z. Wang.,Q. Wang.,H. Zhang.,S. Borri.,I. Galli.,...&P. De Natale and W. Ren.(2022).Doubly resonant sub-ppt photoacoustic gas detection with eight decades dynamic range.Photoacoustics,27,8.
MLA	Z. Wang,et al."Doubly resonant sub-ppt photoacoustic gas detection with eight decades dynamic range".Photoacoustics 27(2022):8.

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