Noise squeezing in a nanomechanical duffing resonator

R. Almog, S. Zaitsev, O. Shtempluck, E. Buks

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108 Scopus citations

Abstract

We study mechanical amplification and noise squeezing in a nonlinear nanomechanical resonator driven by an intense pump near its dynamical bifurcation point, namely, the onset of Duffing bistability. Phase sensitive amplification is achieved by a homodyne detection scheme, where the displacement detector's output, which has a correlated spectrum around the pump frequency, is down-converted by mixing with a local oscillator operating at the pump frequency with an adjustable phase. The down-converted signal at the mixer's output could be either amplified or deamplified, yielding noise squeezing, depending on the local oscillator phase.

Original languageEnglish
Article number078103
JournalPhysical Review Letters
Volume98
Issue number7
DOIs
StatePublished - 16 Feb 2007
Externally publishedYes

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