Digital and FM demodulation of a doubly-clamped single wall carbon nanotube oscillator: towards a nanotube cell phone

Abstract

Electromechanical resonators are a key element in radio-frequency telecommunications devices and thus new resonator concepts from nanotechnology can readily find important industrial opportunities. In this paper, we report the successful experimental realization of AM, FM and digital demodulation with suspended single wall carbon nanotube resonators in the field effect transistor configuration. The crucial role played by the mechanical 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 our devices.

References in corpus (2)

• A tunable carbon nanotube electromechanical oscillator
• Periodic Field Emission from an Isolated Nano-Scale Electron Island

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• Atomic monolayer deposition on the surface of nanotube mechanical resonators
• Frequency modulated self-oscillation and phase inertia in a synchronized nanowire mechanical resonator
• Mass-loading induced dephasing in nanomechanical resonators