Digital and FM demodulation of a doubly clamped single-walled carbon-nanotube oscillator: towards a nanotube cell phone.
Electromechanical resonators are a key element in radio-frequency telecommunication devices and thus new resonator concepts from nanotechnology can readily find important industrial opportunities. Here, the successful experimental realization of AM, FM, and digital demodulation with suspended single-walled carbon-nanotube resonators in a field-effect transistor configuration is reported. The crucial role played by the electromechanical resonance in demodulation is clearly demonstrated. The FM technique is shown to lead to the suppression of unwanted background signals and the reduction of noise for a better detection of the mechanical motion of nanotubes. The digital data-transfer rate of standard cell-phone technology is within the reach of these devices.
Gouttenoire
Vincent
V
Laboratoire de Physique de la Matière Condensée et Nanostructures, Université Lyon 1 CNRS, UMR 5586 Domaine Scientifique de la Doua, 69622 Villeurbanne Cedex, France.
Barois
Thomas
T
Perisanu
Sorin
S
Leclercq
Jean-Louis
JL
Purcell
Stephen T
ST
Vincent
Pascal
P
Ayari
Anthony
A
D040421:Cell Phone; D003460:Crystallization / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D036103:Nanotechnology / Q000295:instrumentation*; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure; D009991:Oscillometry / Q000295:instrumentation*; D010316:Particle Size; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*
D037742:Nanotubes, Carbon