'Anti-laser' built for first time

Two Scientists of Yale university Have Created The World's First Anti Laser,a device that absorbs, rather than emits,a beam of light unlike The conventional Laser Which Emits The coherent Beam of Light In only One Direction.The concept was first published in the July 26, 2010, issue of Physical Review Letters, by a team at Yale University led by theorist A. Douglas Stone.From Then Attempts Are progessed in A Way to Create Antilaser.

Antilaser Works In Exact Opposite of Laser it absorbs and light and forces them to move until their energy vanishes.In a laser, energy is pumped into a medium — which can be a solid, liquid or gas — between two mirrors, stimulating the emission of photons that are coherent, or of the same frequency and phase. The photons reflect back and forth between the mirrors, resulting in amplification of the light.

An anti-laser uses mirrors, too, but the other components are the reverse of a laser. The medium that provides amplification is replaced with one that provides absorption, and the outgoing light beam is replaced with an incoming one.

The device focuses two lasers beams of a specific frequency into a specially designed optical cavity made from silicon, which traps the incoming beams of light and forces them to bounce around until all their energy is dissipated.

In a paper published in the journal Science they demonstrated that the anti-laser could adsorb 99.4 per cent of incoming light, for a specific wavelength.

This Turns to be a Significant Invention which would be a major advantage for Computing Because it is built using silicon.This Could be A Path for Future Generation of computing Called optical Computing ,We can Build Super computers using light instead of High level present computing replacing electrons .It can also be used In Radiology for treating of Cancer to concentrate  to a small region within normally opaque human tissue.
Anti-lasers could be used to modulate the intensity of that light, or to convert light signals into electrical form for on-chip processing, the researchers say.Anti Lasers can Alos Be used In Defence  .
Well Apart From these It could become a part of Future of  Science Fiction movies,The Hero May counter Attack The Bad Guys with Anitlaser.

Image : Wired physics

Lasers have also become a fascination of many television shows and movies.We Have Seen Movies Of James Bond,Batman that Have dealt with lasers.Even an Episode In Bigbang theory ,a group of guys who work in physics at a university in California, make a machine to shoot a laser and reflect it off the moon. Its Time For Antilaser To Take over the screen.
Now batman Has got Another Weapon in his sack of Weapons.It would Be Exciting for movie buffs To watch this on screen
Reference : BBC
Also See Yale university
For more information About How Laser works