Near-Range Large Field-of-View Three-Dimensional Photon-Counting Imaging with a Single-Pixel Si-Avalanche Photodiode

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2018,（11）
• 页码范围: 38-41
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/0256-307X/35/11/114204

摘要

Large field-of-view (FoV) three-dimensional (3D) photon-counting imaging is demonstrated with a single-pixel single-photon detector based on a Geiger-mode Si-avalanche photodiode.By removing the collecting lens (CL) before the detector,the FoV is expanded to ±10°.Thanks to the high detection efficiency,the signal-to-noise ratio of the imaging system is as high as 7.8dB even without the CL when the average output laser pulse energy is about 0.45p J/pulse for imaging the targets at a distance of 5 m.A 3D image overlaid with the reflectivity data is obtained according to the photon-counting time-of-flight measurement and the return photon intensity.