New Haven, Conn. (UPI) Feb 17, 2011
U.S. researchers have announced the development of the world's first "anti-laser," a device that can absorb and cancel out a laser beam.
Scientists at Yale University say the silicon-based device can absorb an incoming laser beam entirely, converting its light to heat energy, the BBC reported Thursday. The technology could lead to a new generation of supercomputers using light rather than electrons, the researchers say.
The anti-laser device can focus two laser beams of a specific frequency into an optical cavity made from silicon, trapping the incoming beams of light and causing them to bounce around until all their energy is dissipated in the form of heat.
Changing the wavelength of the incoming light switches the anti-laser on and off, creating an optical switch that could be the basis of a very fast optically-based computer.
Using silicon to create the anti-laser means optical components could be manufactured using current technology, researchers say, since the material is already widely used in computing.
One thing the anti-laser will not do is create a "shield" against a high-power laser weapon, the researchers say.
"The energy gets dissipated as heat," Yale professor Douglas Stone says. "So if someone sets a laser on you with enough power to fry you, the anti-laser won't stop you from frying."
Share This Article With Planet Earth
Learn about laser weapon technology at SpaceWar.com
'Air laser' could find bombs at a distance
Princeton, N.J. (UPI) Jan 28, 2011
U.S. scientists say a new "air laser" will allow soldiers to detect hidden explosives from a distance and help scientists measure airborne pollutants. Researchers at Princeton University say they've developed a technique for generating a beam of laser light out of nothing but air, a university release said Friday. "We are able to send a laser pulse out and get another pulse back ... read more
Knesset urges $1.4 billion Iron Dome buy|
Surface Combat Systems Center Tests Aegis BMD Capabilities
Boeing And Northrop Grumman Submit Proposal For Missile Defense Competitive Contract
LockMart-Raytheon Team Submits Proposal For GMD Contract
Lockheed Martin Receives $34.5 Million Contract For Paveway II Plus Laser Guided Bomb Kits
Pakistan test fires Babur cruise missile
DSS Awards Raytheon Missile Systems' Tucson Site First Superior Security Rating
Iran tests anti-ship missiles
New wing tests for carrier drone
AeroVironment Develops World's First Fully Operational Life-Size Hummingbird-Like Unmanned Aircraft for DARPA
Mumbai police to get unmanned drones to fight terror: report
New 3G Communications System Demonstrates Ability to Stream Video to Ground
Russian defense satellite in wrong orbit
Boeing To Demonstrate High-Technology, Low-Risk Solutions At AFA Air Warfare Symposium
USAF Selects Northrop Grumman To Research SOA IT For Integrated Air And Space Command And Control
Boeing Tests New Ka-band SATCOM Antenna System
A Device Enables The Remote Explosion Of Improvised Land-Mines
Boeing EA-18G Growlers Deployed by US Navy
Raytheon Conducts Free-Flight Demonstration Of JSOW-C From F-16IN
Northrop Grumman Wins US Marine Corps Common Aviation Command and Control System Contract
Gulf expo could boost Mideast arms sales
Argentine military halts US training over cargo spat
China's Huawei drops US tech firm deal
Global arms sales passed $400 billion in 2009: think tank
US: Troops' move depends on Japan
US top military officer visits Gulf amid Arab revolts
Taiwan cardinal eyes China-Vatican dialogue
Mideast unrest puts US military access in jeopardy
Yale scientists build 'anti-laser'
'Air laser' could find bombs at a distance
ONR Achieves Milestone In Free Electron Laser Program
US Office Of Naval Research Achieves Milestone
|The content herein, unless otherwise known to be public domain, are Copyright 1995-2010 - SpaceDaily. AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by SpaceDaily on any Web page published or hosted by SpaceDaily. Privacy Statement|