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Enhanced photon-phonon coupling via dimerization in one-dimensional optomechanical crystals

Matheny, Matthew H. (2018) Enhanced photon-phonon coupling via dimerization in one-dimensional optomechanical crystals. Applied Physics Letters, 112 (25). Art. No. 253104. ISSN 0003-6951. doi:10.1063/1.5030659.

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We show that dimerization of an optomechanical crystal lattice, which leads to folding of the band diagram, can couple flexural mechanical modes to optical fields within the unit cell via radiation pressure. When compared to currently realized crystals, a substantial improvement in the coupling between photons and phonons is found. For experimental verification, we implement a dimerized lattice in a silicon optomechanical nanobeam cavity and measure a vacuum coupling rate of g_0/2π= 1.7 MHz between an optical resonance at λ_c = 1545 nm and a mechanical resonance at 1.14 GHz.

Item Type:Article
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URLURL TypeDescription Paper
Matheny, Matthew H.0000-0002-3488-1083
Additional Information:© 2018 Published by AIP Publishing. Received 23 March 2018; accepted 5 June 2018; published online 19 June 2018. We thank Oskar Painter for critical advice, support, and use of laboratory and cleanroom facilities. We also thank Sean Meehan, Joseph Redford, Justin Cohen, and Mahmood Kalaee for helpful discussions. This work was supported by the ONR MURI QOMAND Program (Award No. N00014-15-1-2761), the Institute for Quantum Information and Matter, and an NSF Physics Frontiers Center with support of the Gordon and Betty Moore Foundation. We also acknowledge critical support and infrastructure for this work provided by the Kavli Nanoscience Institute at Caltech.
Group:Institute for Quantum Information and Matter, Kavli Nanoscience Institute
Funding AgencyGrant Number
Office of Naval Research (ONR)N00014-15-1-2761
Institute for Quantum Information and Matter (IQIM)UNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
Issue or Number:25
Record Number:CaltechAUTHORS:20180619-130930341
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Official Citation:Enhanced photon-phonon coupling via dimerization in one-dimensional optomechanical crystals. Matthew H. Mathenya. Applied Physics Letters 2018 112:25
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:87230
Deposited By: Tony Diaz
Deposited On:19 Jun 2018 20:19
Last Modified:15 Nov 2021 20:46

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