Optimized optomechanical crystal cavity with acoustic radiation shield

Abstract

We present the design of an optomechanical crystal nanobeam cavity that combines finite-element simulation with numerical optimization, and considers the optomechanical coupling arising from both moving dielectric boundaries and the photo-elastic effect. Applying this methodology results in a nanobeam with an experimentally realized intrinsic optical Q-factor of 1.2x10^6, a mechanical frequency of 5.1GHz, a mechanical Q-factor of 6.8x10^5 (at T=10K), and a zero-point-motion optomechanical coupling rate of g=1.1MHz.

4 pages, 4 figures

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Cited by in corpus (5)

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• Single-photon nonlinearities in two-mode optomechanics
• Laser noise in cavity-optomechanical cooling and thermometry
• Full photon statistics of a light beam transmitted through an optomechanical system
• A superhigh-frequency optoelectromechanical system based on a slotted photonic crystal cavity