New structure could produce efficient semiconductor laser sources

Physics / General Physics

9 minutes ago | not rated yet | 0

(PhysOrg.com) -- University of Wisconsin-Madison researchers have achieved a nanoscale laser structure they anticipate will produce semiconductor lasers in the next two years that are more than twice as efficient ...

A new kind of micro-mobility: Moving tiny particles using magnetic fields

Physics / General Physics

2 hours ago | not rated yet | 0

A new microscopic system devised by researchers in MIT's department of materials science and engineering could provide a novel method for moving tiny objects inside a microchip, and could also provide new insights into how ...

Theorists propose a new way to shine -- and a new kind of star

Physics / General Physics

4 hours ago | 4.3 / 5 (3) | 1

Dying, for stars, has just gotten more complicated. For some stellar objects, the final phase before or instead of collapsing into a black hole may be what a group of physicists is calling an electroweak star.

AOptix Technologies and NuCrypt demonstrate physical-layer quantum encryption

Physics / General Physics

3 hours ago | 4.5 / 5 (2) | 0

AOptix Technologies, a leading edge developer of ultra-high bandwidth laser communication solutions, and NuCrypt, a provider of technology for ultra-high security over optical communication networks, disclosed today the recent ...

Scientists Create Material More Insulating than the Vacuum

Physics / General Physics

Dec 10, 2009 | 4.5 / 5 (57) | 25

(PhysOrg.com) -- With its complete lack of atoms, a vacuum is often considered to be the best known insulator. For this reason, vacuums are regularly used to reduce heat transfer, such as in the lining of ...