Physics - Optics & Photonics news

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

Tiny lasers light up future electronics

(Phys.org) —Faster, smaller electronics are one step closer with researchers from The Australian National University successfully making the first room temperature lasers from gallium arsenide nanowires.

Nov 18, 2013
4.4 / 5 (13) 0 | with audio podcast

Laser diodes versus LEDs

Solid-state lighting based on light-emitting diodes (LEDs) is the most efficient source of high color quality white light. Nevertheless, they show significant performance limitations such as the "efficiency ...

Nov 11, 2013
4.8 / 5 (4) 0

Laser as sniffer dog for explosives

A new compact sensor system based on an LED pumped polymer laser detects explosive vapors quickly and sensitively. This is a promising approach for the detection of hazards, for instance in humanitarian land ...

Nov 08, 2013
5 / 5 (2) 0