Ti/Au TES to Discriminate Single Photons

摘要

Single photon detectors are fundamental devices in several scientific fields, like in optical science and technology. We introduce the state of the art of Transition Edge Sensors, developed and characterized at INRIM, to detect photons from optical to near-infrared wavelength range (406-1570 nm). Both the capability to resolve up to 29 incident photons in a single pulse and to discriminate up to 2 photons with an energy resolution of 0.18 eV have been reached.