photon detector

A photon detector is a device that senses light particles, called photons, and converts their energy into an electrical signal. It enables us to measure and analyze light even at very low levels, such as in scientific research or telecommunications. Think of it as a highly sensitive "light sensor" that can detect and quantify individual particles of light, helping us understand properties of light sources or signals in various applications. These detectors are crucial in fields like astronomy, medical imaging, and fiber-optic communications.