Spectral response of a gigahertz-range nanomechanical oscillator

Gaidarzhy, Alexei; Zolfagharkhani, Guiti; Badzey, Robert L.; Mohanty, Pritiraj
June 2005
Applied Physics Letters;6/20/2005, Vol. 86 Issue 25, p254103
Academic Journal
We report the measurement and simulation of the transverse displacement spectrum of a multi-element nanomechanical oscillator at previously inaccessible frequencies of up to 3 GHz. The detected displacement signal is enhanced in the high-frequency range by the presence of high-order resonance modes generated by coherent motion of individual elements. The spectrum reveals a rich structure with groups of peaks forming quasibands. The spectral structure is qualitatively analogous to atomic emission spectra.


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