Megapixel time-gated SPAD image sensor for scientific imaging applications

Kazuhiro Morimoto; Andrei Ardelean; Ming-Lo Wu; Arin Can Ulku; Ivan Michel M. Antolovic; Vytautas Zickus; Valentin Kapitany; Areeba Fatima; Alex Turpin; Robert Insall; Jamie Whitelaw; Laura Machesky; Claudio Bruschini; Daniele Faccio; Edoardo Charbon

doi:10.1117/12.2582444

5 March 2021 Megapixel time-gated SPAD image sensor for scientific imaging applications

Kazuhiro Morimoto, Andrei Ardelean, Ming-Lo Wu, Arin Can Ulku, Ivan Michel M. Antolovic, Vytautas Zickus, Valentin Kapitany, Areeba Fatima, Alex Turpin, Robert Insall, Jamie Whitelaw, Laura Machesky, Claudio Bruschini, Daniele Faccio, Edoardo Charbon

Author Affiliations +

Proceedings Volume 11654, High-Speed Biomedical Imaging and Spectroscopy VI; 116540U (2021) https://doi.org/10.1117/12.2582444
Event: SPIE BiOS, 2021, Online Only

Abstract

We present a 1 megapixel single-photon avalanche diode (SPAD) camera featuring 3.8 ns time gating and 24 kfps frame rate for 1-bit images, fabricated in 180 nm CMOS image sensor technology. The SPAD sensor was used to capture 2D and 3D scenes over 2 m with depth resolution of 5.4 mm and precision better than 7.8 mm (rms). We demonstrate extended dynamic range in dual exposure operation mode and show spatially overlapped multi-object detection in single-photon time-gated time-of-flight experiments. We further demonstrate applications of the megapixel SPAD camera for fluorescence lifetime imaging microscopy (FLIM) and light-in-flight imaging.

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Kazuhiro Morimoto, Andrei Ardelean, Ming-Lo Wu, Arin Can Ulku, Ivan Michel M. Antolovic, Vytautas Zickus, Valentin Kapitany, Areeba Fatima, Alex Turpin, Robert Insall, Jamie Whitelaw, Laura Machesky, Claudio Bruschini, Daniele Faccio, and Edoardo Charbon "Megapixel time-gated SPAD image sensor for scientific imaging applications", Proc. SPIE 11654, High-Speed Biomedical Imaging and Spectroscopy VI, 116540U (5 March 2021); https://doi.org/10.1117/12.2582444

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