SEMICONDUCTOR lasers have finally gone green, plugging a gaping hole in the spectrum and paving the way for full-colour projectors for cellphones. Costly solid-state green lasers already exist, but ...

Semiconductor lighting technology is developing rapidly. While seeking high luminous efficiency, low cost, and superior reliability, researchers are increasingly focusing on the effects of LED ...

Semiconductors can generate laser light in all colors except one. But new techniques for growing laser diodes could soon make brilliant full-spectrum displays a reality On a rainy Saturday morning in ...

Compact lasers which can work in formerly inaccessible parts of the spectrum and are suitable for mass production are now within reach. Compact lasers which can work in formerly inaccessible parts of ...

Semiconductor vertical-cavity surface-emitting lasers (VCSELs) with wavelengths from 491.8 to 565.7 nm, covering most of the ‘green gap’, are demonstrated. For these lasers, the same quantum dot (QD) ...

Green lasers are employed as a laser pointer in guns, rifles, and other high-tech weapons. Green lasers are also used as a rescue light, as they can form a continuous line in the dark, due to which ...