The concentric layers of photon shields protect the sensitive optical instruments from the heat of the Earth and sun. SPHEREx launched at 11:10 p.m. EST, March 11 aboard a SpaceX Falcon 9 rocket ...

This advance could make single-photon lidar practical for air and space applications such as environmental monitoring, 3D terrain mapping and object identification. Single-photon lidar uses single ...

Central to these systems are photon detectors, which detect and measure photons. One notable type is the superconducting nanowire single-photon detector (SNSPD). SNSPDs utilize ultra-thin ...