Dissipative Optomechanics in a Michelson--Sagnac Interferometer

Details Dissipative Optomechanics in a Michelson--Sagnac Interferometer Dissipative Optomechanics in a Michelson--Sagnac Interferometer

2011-07-25

arxiv.org/abs/1107.4908v2

Phys. Rev. Lett. 107, 213604 (2011)

Physics

Optics

9 pages, 6 figures

Scientific paper

10.1103/PhysRevLett.107.213604

Dissipative optomechanics studies the coupling of the motion of an optical element to the decay rate of a cavity. We propose and theoretically explore a realization of this system in the optical domain, using a combined Michelson--Sagnac interferometer, which enables a strong and tunable dissipative coupling. Quantum interference in such a setup results in the suppression of the lower motional sideband, leading to strongly enhanced cooling in the non-sideband-resolved regime. With state-of-the-art parameters, ground-state cooling and low-power quantum-limited position transduction are both possible. The possibility of a strong and tunable dissipative coupling opens up a new route towards observation of fundamental optomechanical effects such as ponderomotive squeezing or nonlinear dynamics. Beyond optomechanics, the method suggested here can be readily transferred to other setups involving such systems as nonlinear media, atomic ensembles, or single atoms.

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