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Single-photon dual-comb ghost imaging spectroscopy

Author

Listed:
  • Daowang Peng

    (Dalian University of Technology)

  • Liang Mei

    (Dalian University of Technology)

  • Zhenfeng Gong

    (Dalian University of Technology)

  • Zhong Zuo

    (Chinese Academy of Sciences)

  • Zhiwei Liu

    (Zhejiang Laboratory)

  • Yuanfeng Di

    (Shanghai Nanyang Model High School)

  • Xu Liu

    (Zhejiang Laboratory)

  • Chenglin Gu

    (East China Normal University)

  • Wenxue Li

    (East China Normal University)

  • Guofeng Yan

    (Zhejiang Laboratory
    State Key Laboratory of Ocean Sensing)

Abstract

Single-photon spectroscopy utilizing single-pixel binary detectors, often statistically recovers “high-dimension” spectral information from “low-dimension” photon-counting signals with ultra-high sensitivity. Nevertheless, it has been a significantly long-standing challenge to achieve either high-speed or high-resolution spectral measurements under photon-deficient scenarios. This study proposes single-photon dual-comb ghost imaging spectroscopy (DC-GIS), which utilizes a mode-resolved dual-comb matrix to interrogate the sample and directly calculates the high-resolution spectrum from photon-counting signals in milliseconds through ghost-imaging method. The concept of single-photon DC-GIS has been examined by measuring the vib-rotational transitions of acetylene with a resolution of 125 MHz and a measurement time of 6.4 ms, and ultra-long distance (125 km) fiber sensing based on phase-shifted fiber Bragg grating with an ultra-high sensitivity of 0.5 με with femtowatt-level power per comb line. This approach brings the high-speed and high-resolution spectroscopy to the cutting-edge research of photon-scarce scenarios.

Suggested Citation

  • Daowang Peng & Liang Mei & Zhenfeng Gong & Zhong Zuo & Zhiwei Liu & Yuanfeng Di & Xu Liu & Chenglin Gu & Wenxue Li & Guofeng Yan, 2025. "Single-photon dual-comb ghost imaging spectroscopy," Nature Communications, Nature, vol. 16(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-63516-w
    DOI: 10.1038/s41467-025-63516-w
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