Nanotube Radio: Supplementary materials
K. Jensen, J. Weldon, H. Garcia, and A. Zettl
Department of Physics, University of California at Berkeley
Center of Integrated Nanomechanical Systems, University of California at Berkeley
Materials Sciences Division, Lawrence Berkeley National Laboratory
Berkeley, CA 94720, U.S.A.
We have constructed a fully functional, fully integrated radio receiver, orders-of-magnitude smaller than any previous radio, from a single carbon nanotube. The single nanotube serves, at once, as all major components of a radio: antenna, tuner, amplifier, and demodulator. Moreover, the antenna and tuner are implemented in a radically different manner than traditional radios, receiving signals via high frequency mechanical vibrations of the nanotube rather than through traditional electrical means. We have already used the nanotube radio to receive and play music from FM radio transmissions such as Layla by Eric Clapton (Derek and the Dominos) and the Beach Boy's Good Vibrations. The nanotube radio's extremely small size could enable radical new applications such as radio controlled devices small enough to exist in the human bloodstream, or simply smaller, cheaper, and more efficient wireless devices such as cellular phones....
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