Advanced Materials, Nanotechnology and Engineering

Optoelectronics

Optoelectronics is a specific discipline of electronics that focuses on light-emitting or light-detecting devices. Light-emitting devices use voltage and current to produce electromagnetic radiation  i.e., light. Such light-emitting devices are commonly used for purposes of illumination or as indicator lights. In contrast, light-detecting devices, such as phototransistors, are designed to convert received electromagnetic energy into electric current or voltage.