Photo Detectors
Photodetectors are electronic devices that detect light or other forms of electromagnetic radiation and convert the received optical energy into an electrical signal. They are widely used in optical communication, medical instruments, industrial automation, consumer electronics, scientific research, security systems, and environmental monitoring.
Definition
A photodetector is a sensor that responds to incident light by generating a measurable electrical output, such as current, voltage, or a change in resistance. Depending on the device type, photodetectors can detect ultraviolet (UV), visible, infrared (IR), or other regions of the electromagnetic spectrum.
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