1. Ultraviolet photon-counting single-pixel imaging
- Author
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Ye, Jun-Tian, Yu, Chao, Li, Wenwen, Li, Zheng-Ping, Lu, Hai, Zhang, Rong, Zhang, Jun, Xu, Feihu, and Pan, Jian-Wei
- Subjects
Physics - Optics ,Physics - Instrumentation and Detectors ,Quantum Physics - Abstract
We demonstrate photon-counting single-pixel imaging in the ultraviolet region. Toward this target, we develop a high-performance compact single-photon detector based on a 4H-SiC single-photon avalanche diode (SPAD), where a tailored readout circuit with active hold-off time is designed to restrain detector noise and operate the SPAD in free-running mode. We use structured illumination to reconstruct 192$\times$192 compressed images at a 4 fps frame rate. To show the superior capability of ultraviolet characteristics, we use our single-pixel imaging system to identify and distinguish different transparent objects under low-intensity irradiation, and image ultraviolet light sources. The results provide a practical solution for general ultraviolet imaging applications., Comment: 5 pages, 5 figures, accepted for publication in Applied Physics Letters
- Published
- 2023
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