SAG-based InGaAs/InP SPADs for photon counting in SWIR wavelengths Abstract: Low-light detection with high spatial and temporal precision is increasingly critical for applications like LiDAR, biomedical imaging, free-space communication, and adaptive optics. Single-photon avalanche diodes (SPADs), capable of detecting picosecond-level transients at the single-photon level, are emerging as a key technology to meet these demands.... Read more →