2019/12/30 by Kazuhiro Morimoto, Morimoto, Kazuhiro, Andrei Ardelean +11 · 6 citations
Biochemistry, Genetics and Molecular Biology · Medicine · Physics and Astronomy · #Advanced Fluorescence Microscopy Techniques #Advanced Optical Sensing Technologies #FOS: Electrical engineering #FOS: Physical sciences #Image and Video Processing (eess.IV) #Instrumentation and Detectors (physics.ins-det) #Ocular and Laser Science Research #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.1912.12910
openalex publication_date 2019/12/30 · openalex created_date 2020/01/10 · openalex updated_date 2026/07/28
We present the first 1Mpixel SPAD camera ever reported. The camera features 3.8ns time gating and 24kfps frame rate; it was fabricated in 180nm CIS technology. Two pixels have been designed with a pitch of 9.4μm in 7T and 5.75T configurations, respectively, achieving a maximum fill factor of 13.4%. The maximum PDP is 27%, median DCR 2.0cps, variation in gating length 120ps, position skew 410ps, and rise/fall time <550ps, all FWHM at 3.3V of excess bias. The sensor was used to capture 2D/3D scenes over 2m with an LSB of 5.4mm and a precision better than 7.8mm. Extended dynamic range is demonstrated in dual exposure operation mode. Spatially overlapped multi-object detection is experimentally demonstrated in single-photon time-gated ToF for the first time.