A5017798111- Ocular and Laser Science Research
- Advanced Optical Sensing Technologies
- Advanced Fluorescence Microscopy Techniques
- Atmospheric aerosols and clouds
- Meteorological Phenomena and Simulations
- Atmospheric chemistry and aerosols
- Terahertz technology and applications
- Air Quality Monitoring and Forecasting
- Random lasers and scattering media
- Microwave Engineering and Waveguides
- Photonic and Optical Devices
- Cryospheric studies and observations
Chinese Academy of Sciences
2021-2025
Institute of Optics and Electronics, Chinese Academy of Sciences
2021-2025
University of Chinese Academy of Sciences
2021-2024
Institute of Geographic Sciences and Natural Resources Research
2024
Single-photon lidar (SPL) exhibits high sensitivity, making it particularly suitable for detecting weak echoes over long distances. However, its susceptibility to background noise necessitates the implementation of advanced filtering techniques and complex algorithms, which can significantly increase system cost complexity. To address these challenges, we propose a time-division-multiplexing-based correlated photon that employs narrowband pulsed laser with stable time delays variable pulse...
Photon counting lidar has been widely used in long-distance target detection and long range active three-dimensional imaging fields due to its extremely high detecting sensitivity. The single-photon level sensitivity extends the of photon lidar, meanwhile makes it suffer from noise interference. Especially, strong sunlight background during daytime limits ability applications lidar. In this paper, a new type ultra-narrowband spectral filtering system is designed for based on which, working...
Estimating downwelling surface longwave radiation (DSLR) under cloudy-sky conditions presents a significant challenge, the parameterization methods used to estimate DSLR may yield disparate results for same scenario. Hence, it is imperative undertake comparative and validation study of these comprehend their applicability. This compares validates five parameterized schemes estimating using data from Fengyun-4A (FY-4A) Himawari-8 geostationary satellites. Additionally, an improved algorithm...
Photon-counting LIDAR has effective ability to detect significantly weak echo. However, for imaging application, it typically needs a long acquisition time obtain sufficient counts reconstruct clear depth image, which obviously limits efficiency and prevents its wide deployment. In this paper, we proposed low photon-counting method based on two single element SPADs pixel scanning structure. Compared fast with SPAD array, the requirement laser energy can image arbitrary resolution. Experiment...
Single photon LIDAR exhibits exceptional detection sensitivity and finds extensive applications in long-distance measurement three-dimensional imaging domains. However, it is susceptible to background noise interference, leading a trade-off between scanning efficiency angular resolution, thereby limiting its overall performance. In this paper, we propose novel 'compression-resampling' high-resolution method for single-photon based on the spatial correlation of target scene. This approach...
Accurate three-dimensional spatiotemporal distribution information on near-surface aerosols is of great significance for environmental research. In this study, a 3D scanning coaxial Mie lidar (3D-STML) was developed to achieve fast observation aerosol diffusion processes in areas. 3D-STML generates high-spatiotemporal resolution images extinction coefficient real-time and captures the dynamic changes near real-time. By optimizing design light guide mirror telescope sub-mirror, system has...