title: Noise squeezing in a nanomechanical Duffing resonator.
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.
authors.affiliation: Department of Electrical Engineering, Technion, Haifa 32000, Israel.
authors.forename: R
authors.initials: R
authors.lastname: Almog
authors.forename: S
authors.initials: S
authors.lastname: Zaitsev
authors.forename: O
authors.initials: O
authors.lastname: Shtempluck
authors.forename: E
authors.initials: E
authors.lastname: Buks
mesh_terms: D000465:Algorithms; D000669:Amplifiers, Electronic; D036103:Nanotechnology; D017711:Nonlinear Dynamics; D014732:Vibration