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Purdue Engineers Use 'Shaped' Laser Pulses in 'Ultra-Wideband' Research.
AScribe Business & Economics News Service, April, 2005
Byline: Purdue University
WEST LAFAYETTE, Ind.. April 5 (AScribe Newswire) -- Engineers at Purdue University have developed a technique that could result in more accurate "ultra-wideband" radio signals for ground-penetrating radar, radio communications and imaging systems designed to see through walls.
The researchers first create laser pulses with specific "shapes," which precisely characterize the changing intensity of light from the beginning to end of each pulse. The pulses are then converted into electrical signals for various applications.
By controlling the shapes of laser pulses, the researchers are able to adjust the frequencies of the resulting radio signals and to produce signals with higher frequencies than are otherwise possible....
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