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Microstructures Emit Coherent IR Radiation

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Daniel S. Burgess

Thermal sources, such as a blackbody or the incandescent filament in a lightbulb, typically produce broadband, quasi-isotropic radiation. But a team at Centre National de la Recherche Scientifique in Châtenay-Malabry and Bagneux, France, and at Commissariat a l'Energie Atomique in Le Barp, France, has demonstrated that this need not be the case by developing a microstructured source that acts like an infrared antenna, generating coherent mid-infrared radiation in narrow emission lobes. "Contrary to a common belief, light is not always incoherent along the surface of a thermal source," said...Read full article

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    Published: June 2002
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