Infrared Detector Technology: Applications, Trends, and Future Outlook
An infrared detector is a device that senses and measures infrared (IR) radiation, which is emitted by all objects based on their temperature. Unlike visible light, infrared radiation is invisible to the human eye, but it carries valuable information about heat and energy. Infrared detectors convert this radiation into electrical signals, enabling applications such as thermal imaging, motion detection, and environmental monitoring. Infrared detectors are broadly classified into two main types: thermal detectors and quantum (photon) detectors . Thermal detectors, such as bolometers, measure temperature changes caused by absorbed infrared radiation. They are widely used in applications like firefighting, building inspection, and security surveillance due to their cost-effectiveness and ability to operate at room temperature. Quantum detectors, on the other hand, detect photons directly and offer higher sensitivity and faster response times. These detectors are commonly used in adv...