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Photo-acoustic dual-frequency comb spectroscopy

Author

Listed:
  • Thibault Wildi

    (Swiss Center for Electronics and Microtechnology (CSEM)
    Center for Free-Electron Laser Science (CFEL), Deutsches Elektronen-Synchrotron (DESY))

  • Thibault Voumard

    (Swiss Center for Electronics and Microtechnology (CSEM)
    Center for Free-Electron Laser Science (CFEL), Deutsches Elektronen-Synchrotron (DESY))

  • Victor Brasch

    (Swiss Center for Electronics and Microtechnology (CSEM))

  • Gürkan Yilmaz

    (Swiss Center for Electronics and Microtechnology (CSEM))

  • Tobias Herr

    (Swiss Center for Electronics and Microtechnology (CSEM)
    Center for Free-Electron Laser Science (CFEL), Deutsches Elektronen-Synchrotron (DESY))

Abstract

Photo-acoustic spectroscopy (PAS) is one of the most sensitive non-destructive analysis techniques for gases, fluids and solids. It can operate background-free at any wavelength and is applicable to microscopic and even non-transparent samples. Extension of PAS to broadband wavelength coverage is a powerful tool, though challenging to implement without sacrifice of wavelength resolution and acquisition speed. Here we show that dual-frequency comb spectroscopy (DCS) and its potential for unmatched precision, speed and wavelength coverage can be combined with the advantages of photo-acoustic detection. Acoustic wave interferograms are generated in the sample by dual-comb absorption and detected by a microphone. As an example, weak gas absorption features are precisely and rapidly sampled; long-term coherent averaging further increases the sensitivity. This novel approach of dual-frequency comb photo-acoustic spectroscopy (DCPAS) generates unprecedented opportunities for rapid and sensitive multi-species molecular analysis across all wavelengths of light.

Suggested Citation

  • Thibault Wildi & Thibault Voumard & Victor Brasch & Gürkan Yilmaz & Tobias Herr, 2020. "Photo-acoustic dual-frequency comb spectroscopy," Nature Communications, Nature, vol. 11(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17908-9
    DOI: 10.1038/s41467-020-17908-9
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    Cited by:

    1. Yizhi Liang & Wubing Fu & Qiang Li & Xiaolong Chen & Huojiao Sun & Lidai Wang & Long Jin & Wei Huang & Bai-Ou Guan, 2022. "Optical-resolution functional gastrointestinal photoacoustic endoscopy based on optical heterodyne detection of ultrasound," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Daowang Peng & Chenglin Gu & Zhong Zuo & Yuanfeng Di & Xing Zou & Lulu Tang & Lunhua Deng & Daping Luo & Yang Liu & Wenxue Li, 2023. "Dual-comb optical activity spectroscopy for the analysis of vibrational optical activity induced by external magnetic field," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    3. Xinyi Ren & Jin Pan & Ming Yan & Jiteng Sheng & Cheng Yang & Qiankun Zhang & Hui Ma & Zhaoyang Wen & Kun Huang & Haibin Wu & Heping Zeng, 2023. "Dual-comb optomechanical spectroscopy," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    4. Qiang Wang & Zhen Wang & Hui Zhang & Shoulin Jiang & Yingying Wang & Wei Jin & Wei Ren, 2022. "Dual-comb photothermal spectroscopy," Nature Communications, Nature, vol. 13(1), pages 1-7, December.

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