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September 17th, 2004
An Antenna for Visible Light
Abstract:
An antenna for visible light, analogous to antennas for radio waves, can be made with carbon nanotubes. In a radio antenna, whose size is equal to the wavelength of the incoming wave or a fair fraction of it, the wave excites electrons into meaningful currents . Such a response, amplified and tuned, is the backbone of radio and TV broadcasting.
Source:
Physics News Update
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