Parametric amplification in a torsional microresonator

Dustin W. Carr; Stephane Evoy; Lidija Sekaric; H. G. Craighead; J. M. Parpia

doi:10.1063/1.1308270

Parametric amplification in a torsional microresonator

Dustin W. Carr, Stephane Evoy, Lidija Sekaric, H. G. Craighead, J. M. Parpia

Research output: Contribution to journal › Article

149 Scopus citations

Abstract

We observe parametric amplification in a torsional micron-scale mechanical resonator. An applied voltage is used to make a dynamic change to the torsional spring constant. Oscillating the spring constant at twice the resonant frequency results in a phase dependent amplification of the resonant motion. Our results agree well with the theory of parametric amplification. By taking swept frequency measurements, we observe interesting structure in the resonant response curves.

Original language	English (US)
Pages (from-to)	1545-1547
Number of pages	3
Journal	Applied Physics Letters
Volume	77
Issue number	10
DOIs	https://doi.org/10.1063/1.1308270
State	Published - Sep 4 2000

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Parametric amplification in a torsional microresonator",

abstract = "We observe parametric amplification in a torsional micron-scale mechanical resonator. An applied voltage is used to make a dynamic change to the torsional spring constant. Oscillating the spring constant at twice the resonant frequency results in a phase dependent amplification of the resonant motion. Our results agree well with the theory of parametric amplification. By taking swept frequency measurements, we observe interesting structure in the resonant response curves.",

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AU - Parpia, J. M.

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