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arXiv · 1605.09275

Optomechanics with two-phonon driving

B. A. Levitan·A. Metelmann·A. A. Clerk
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Abstract

We consider the physics of an optomechanical cavity subject to coherent two-phonon driving, i.e. degenerate parametric amplification of the mechanical mode. We show that in such a system, the cavity mode can effectively "inherit" parametric driving from the mechanics, yielding phase-sensitive amplification and squeezing of optical signals reflected from the cavity. We also demonstrate how such a system can be used to perform single-quadrature detection of a near-resonant narrow-band force applied to the mechanics with extremely low added noise from the optics. The system also exhibits strong differences from a conventional degenerate parametric amplifier: in particular, the cavity spectral function can become negative, indicating a negative effective photon temperature.

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B. A. Levitan, A. Metelmann, A. A. Clerk. 2016-09-08. Optomechanics with two-phonon driving. https://doi.org/10.1088/1367-2630%2F18%2F9%2F093014

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