Chan, Jasper and Safavi-Naeini, Amir H. and Hill, Jeff T. and Meenehan, Seán and Painter, Oskar (2012) Optimized optomechanical crystal cavity with acoustic radiation shield. Applied Physics Letters, 101 (8). Art. No. 081115. ISSN 0003-6951. http://resolver.caltech.edu/CaltechAUTHORS:20121005-141740946
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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 1.2×10^6, a mechanical frequency of 5.1 GHz, a mechanical Q-factor of 6.8×10^5 (at T = 10 K), and a zero-point-motion optomechanical coupling rate of g = 1.1 MHz.
|Additional Information:||© 2012 American Institute of Physics. Received 12 June 2012; accepted 9 August 2012; published online 23 August 2012. This work was supported by the DARPA/MTO ORCHID program through a grant from AFOSR, and the Kavli Nanoscience Institute at Caltech. J.C. and A.S.N. gratefully acknowledges support from NSERC.|
|Group:||IQIM, Institute for Quantum Information and Matter, Kavli Nanoscience Institute|
|Subject Keywords:||finite element analysis, laser cavity resonators, nanomechanics, optical couplers, photoelasticity, photonic crystals, Q-factor|
|Classification Code:||PACS: 42.70.Qs; 42.60.Da; 42.79.Gn; 46.25.-y; 02.70.Dh|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||10 Oct 2012 18:13|
|Last Modified:||02 May 2014 15:43|
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