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Article Dans Une Revue Applied Physics Letters Année : 2011

Energy measurement in nonlinearly coupled nanomechanical modes

Alexei Gaidarzhy
  • Fonction : Auteur
Guiti Zolfagharkhani
  • Fonction : Auteur
Matthias Imboden

Résumé

We report direct measurements of average vibration energy in a high frequency flexural resonance mode achieved via an-harmonic elastic coupling to a fundamental vibration mode of a nanomechanical resonator. The second order coupling effect produces a frequency shift of the read-out mode as a function of the mean square of the excitation amplitude of the high order mode. We measure frequency shifts at the lowest driving amplitudes, down to the noise floor of the experimental setup. With implementation of existing ultra-sensitive amplifiers, the reported technique will enable direct measurements of quantized energy transitions in low-thermal occupation number nanomechanical resonators.

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Dates et versions

hal-00628025 , version 1 (31-05-2021)

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Alexei Gaidarzhy, Jerome Dorignac, Guiti Zolfagharkhani, Matthias Imboden, Pritiraj Mohanty. Energy measurement in nonlinearly coupled nanomechanical modes. Applied Physics Letters, 2011, 98, pp.264106. ⟨10.1063/1.3604797⟩. ⟨hal-00628025⟩
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