Photodetection

Photodetection is the process of converting light into an electrical signal. When light reaches a photodetector, such as a photodiode or a camera sensor, the energy from the light photons stimulates the material, generating electrical charges. These charges create a small current that can be measured and used to determine the intensity or presence of light. Photodetectors are essential in everyday devices like cameras, optical communication systems, and medical instruments, enabling the translation of visual information into electronic data for processing or display.