Abstract:The key features of a single-photon avalanche diode (SPAD) are its ability to detect a single photon and provide a digital signal output. The avalanche multiplication process, which generates a detectable electrical signal that can be amplified up to a high voltage without the need for additional circuits, allows SPADs to detect individual photons. Specifically, a SPAD fabricated in CMOS technology can detect near-infrared (NIR) signals, which is a crucial requirement in many applications such as light detecti… Show more
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