Physics - Optics & Photonics news

Building a more versatile laser

( -- One of the drawbacks associated with using semiconductor lasers is that many of them can only produce a beam of a single wavelength, and can only send that beam in one direction at a time. ...

Nov 16, 2009 feature
4.5 / 5 (19) 0

3-D images, with only one photon per pixel

Lidar rangefinders, which are common tools in surveying and in autonomous-vehicle control, among other applications, gauge depth by emitting short bursts of laser light and measuring the time it takes for ...

Nov 29, 2013
5 / 5 (11) 0 | with audio podcast