Single-photon dual-comb ghost imaging spectroscopy.

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 MH

SUBMITTER: Peng D 

PROVIDER: S-EPMC12475216 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature