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A method to detect gas based on the Fabry-Pérot cavity by using terahertz frequency-domain spectroscopy

  • Beihang University

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Due to the limitation of the gas volume as well as the optical path, sometimes the absorption peak of the gas is difficult to observe. Here, we present a new gas detection method based on the Fabry-Pérot cavity, which can effectively enhance the absorption peaks of gases by using terahertz frequency-domain spectroscopy. By changing the cavity length, the cavity resonance center frequency and resonance modes can be changed to detect multiple gases or to observe the performance of the same gas in different resonance modes. The enhancement of the absorption peak at 560 GHz for water vapor has been successfully observed, and it is expected to be useful for the detection of various substances.

源语言英语
主期刊名2023 International Symposium on Ultrafast Phenomena and Terahertz Waves, ISUPTW 2023
出版商Institute of Electrical and Electronics Engineers Inc.
ISBN(电子版)9798350317473
DOI
出版状态已出版 - 2023
活动2023 International Symposium on Ultrafast Phenomena and Terahertz Waves, ISUPTW 2023 - Qingdao, 中国
期限: 8 9月 202311 9月 2023

出版系列

姓名2023 International Symposium on Ultrafast Phenomena and Terahertz Waves, ISUPTW 2023

会议

会议2023 International Symposium on Ultrafast Phenomena and Terahertz Waves, ISUPTW 2023
国家/地区中国
Qingdao
时期8/09/2311/09/23

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