Untitled Document
Not a member yet? Register for full benefits!

Username
Password
 Single Light Wave Flashes out from Fibre Laser

This story is from the category Computing Power
Printer Friendly Version
Email to a Friend (currently Down)

 

 

Date posted: 21/12/2009

A long-elusive goal of physics has been reached ? producing a pulse of light so short that it contains just a single oscillation of a light wave.

The flashes are almost as short as a light pulse can be, according to the laws of physics. The new super-short pulses could used as flashguns to sense very small, very fast events such as a single photon interacting with a single electron, says Alfred Leitenstorfer of the University of Konstanz in Germany. A single-cycle pulse packs in energy more densely than a pulse containing more wave peaks and troughs.

They could also show the way to boosting data transmission through fibre-optic cables, by shrinking the minimum amount of light needed to encode a single digital 1 or 0.

"Single-cycle pulse generation with an essentially all-fibre system clearly marks a milestone in optical technology," says Martin Fermann of laser manufacturer Imra America, who was not involved with the work. He expects "the single-cycle regime will become a new standard" with applications in advanced imaging, sensing and signal processing.

See the full Story via external site: www.newscientist.com



Most recent stories in this category (Computing Power):

19/02/2017: Printable solar cells just got a little closer

04/02/2017: 1,000x more efficient nano-LED offers possibility of faster processors

31/01/2017: For this metal, electricity flows, but not heat

26/01/2017: Google brings AI to Raspberry Pi

12/01/2017: Researchers turn memory chips into processors to speed up computing tasks

08/01/2017: Intel announces Compute Card – A full PC the size of a Credit Card

23/12/2016: Scalable energy harvesting of unused mechanical energy in the environment

28/11/2016: Japan kicks off AI supercomputer project