Lasers, LEDs and light sources
Lasers, LEDs and light sources are devices that create light. LEDs (light emitting diodes) convert an electrical current into light using spontaneous emission in optically active semiconductors. Lasers add a mechanism for optical feedback, such as mirrors, that stimulates further emission and generates a high-intensity beam of radiation.
Latest Research and Reviews
Research | | openScientific Reports 7, 12928
News and Comment
News and Views |Nature Photonics 11, 405–407