LIDAR Laser Radar Finding More Uses
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If you've ever been pulled over for speeding, you may already know something about LIDAR. A laser-based radar system, LIDAR can tell if you're speeding by bouncing a light beam off your car and seeing how quickly it returns. From an airplane or a satellite, LIDAR can calculate the distance to the ground, and by repeating the process millions of times as it flies over, map the lay of the land.
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Researchers said on Friday they have invented an antenna that captures visible light in much the same way that radio antennas capture radio waves.
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An airport trains its radar on the ground in search of an enemy that can destroy planes: foreign object debris. By John Hudson.
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A societa' attiva in alta tecnologia laser 'Prime industrie'
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A new method for creating metamaterials that bend light in unusual ways may have brought practical applications closer.
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The U.S. military said it is testing a system to beam red and green lasers at aircraft in the Washington area as a warning when they enter restricted airspace.
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Nanoparticles can be activated by radio frequencies.
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Researchers find way to make tiny structures emit different wavelengths of light.
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In an advance that could drive down the cost of optical networks, researchers have built a laser using silicon, the same material used in computer chips, that shines without stopping or blinking.
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NEW YORK -- A New York City Police Department helicopter with an ultra-sensitive radiation detector affixed to its tail whipped through a wintry sky over Lower Manhattan last month, hunting block by block through the concrete canyons of Wall Street for a black SUV containing the components of a h...
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TOKYO - Scientists from Fujitsu Ltd. and The University of Tokyo have developed a laser that is capable of maintaining a stable output over a wide temperature range at speeds and frequencies useful for optical communications, the research team said Friday. The device could enable the creation of optical networking equipment that is smaller, cheaper and consumes less power than current devices, the leader of the research team said.
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Radar will likely beat out laser, sonar, and camera technology when it comes to obstacle detection in cars, analyst reports.
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Geographers use lasers to create detailed digital images of California's rugged wilderness, from forest floors to the tops of evergreen giants.
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This city is among the first in the nation to use infrared scanners that read license plates on moving and parked cars, giving officials immediate access to a database of police and tax records in their hunt for criminals and tax delinquents.
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Burn baby burn Rayguns are, um, on fire lately, with the US Army dishing out early contracts in its monster truck laser cannon race, Boeing planning a rather unimpressive blaster-equipped Humvee and the famous American nuke-toasting jumbo jet continuing to make headlines. Now the Defence Advanced Research Projects Agency (DARPA), the Pentagon war-nerd bureau which loves nothing better than a long shot, has joined in.â¦
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By Anonymous  The New South Wales Department of Environment & Conservation (NSW DEC) has been using a 125 kHz GeoAcoustics GeoSwath Plus wide swath sonar system for habitat mapping within the state's network of Marine Protected Areas.
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Scientists capture a beam of light and make it reappear elsewhere, potentially leading to advances in computing.