167 research outputs found
Proposal for an Optomechanical Traveling Wave Phonon-Photon Translator
In this article we describe a general optomechanical system for converting
photons to phonons in an efficient, and reversible manner. We analyze
classically and quantum mechanically the conversion process and proceed to a
more concrete description of a phonon-photon translator formed from coupled
photonic and phononic crystal planar circuits. Applications of the
phonon-photon translator to RF-microwave photonics and circuit QED, including
proposals utilizing this system for optical wavelength conversion, long-lived
quantum memory and state transfer from optical to superconducting qubits are
considered.Comment: 32 pages, 11 figure
Optomechanics in an ultrahigh-Q two-dimensional photonic crystal cavity
We demonstrate an ultrahigh-Q slotted two-dimensional photonic crystal cavity capable of obtaining strong interaction between the internal light field and the mechanical motion of the slotted structure. The measured optical quality factor is Q = 1.2Ă10^6 for a cavity with an effective modal volume of V_(eff) = 0.04(λ)^3. Optical transduction of the thermal motion of the fundamental in-plane mechanical resonance of the structure (Îœ_m = 151âMHz) is performed, from which a zero-point motion optomechanical coupling rate of gâ/2Ï = 320âkHz is inferred. Dynamical back-action of the optical field on the mechanical motion, resulting in cooling and amplication of the mechanical motion, is also demonstrated
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