Full-field quantum imaging with a single-photon avalanche diode camera

Single-photon-avalanche diode (SPAD) arrays are essential tools in biophotonics, optical ranging and sensing quantum optics. However, their small number of pixels, low efficiency fill factor have so far hindered use for practical imaging applications. Here, we demonstrate full-field entangled photon pair correlation using a 100-kpixels SPAD camera. By measuring coincidences between more than 500 million pairs positions, retrieve the full point spread function system subsequently high-resolution images target objects illuminated by spatially pairs. We show that our approach is robust against stray light, enabling technologies to move beyond laboratory experiments towards real-world applications such as LiDAR.