“Compared to photonic-crystal surface-emitting lasers, even the best conventional semiconductor lasers today seem like bulky edge-emitting devices with poor beam quality, large beam spread and ...

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 ...

Indeed, modern laser light sources achieve impressively narrow bandwidths already ... In research presented at the SPIE Optical Microlithography Symposium in San Jose this week, Cymer’s Paolo Alagna ...