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Updated: Jan 7, 2026

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
Published on: March 22, 2019
Detecting stereoscopic distribution of carbon dioxide using single photon spectroscopy
Youwen Sun1, Xiaomin Hu2, Pan Yu3
1Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China.
None:
It is of great significance to develop a high-precision and high spatiotemporal resolution of stereoscopic detection technology to finely delineate the horizontal and vertical distributions of CO2. This study elaborates on the superiorities of single photon spectroscopy, key steps to develop a high-performance single photon LIDAR, and their potential applications. Single-photon CO2 LIDAR integrates quantum sensing techniques with classical spectral measurement techniques, and can overcome the detection limitations of traditional CO2 LIDAR in terms of detection distance, sensitivity, and spatiotemporal resolution. We anticipate that the single-photon spectroscopic technology can be widely applied in the detection of regional distribution and emission fluxes of CO2, transboundary transport fluxes of CO2, and in supporting the establishment of a new carbon monitoring framework.
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