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Two-dimensional optomechanical crystal cavity with high quantum cooperativity

Ren, Hengjiang and Matheny, Matthew H. and MacCabe, Greg S. and Luo, Jie and Pfeifer, Hannes and Mirhosseini, Mohammad and Painter, Oskar (2020) Two-dimensional optomechanical crystal cavity with high quantum cooperativity. Nature Communications, 11 . Art. No. 3373. ISSN 2041-1723. PMCID PMC7338352.

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Optomechanical systems offer new opportunities in quantum information processing and quantum sensing. Many solid-state quantum devices operate at millikelvin temperatures—however, it has proven challenging to operate nanoscale optomechanical devices at these ultralow temperatures due to their limited thermal conductance and parasitic optical absorption. Here, we present a two-dimensional optomechanical crystal resonator capable of achieving large cooperativity C and small effective bath occupancy n_b, resulting in a quantum cooperativity C_(eff) ≡ C/n_b > 1 under continuous-wave optical driving. This is realized using a two-dimensional phononic bandgap structure to host the optomechanical cavity, simultaneously isolating the acoustic mode of interest in the bandgap while allowing heat to be removed by phonon modes outside of the bandgap. This achievement paves the way for a variety of applications requiring quantum-coherent optomechanical interactions, such as transducers capable of bi-directional conversion of quantum states between microwave frequency superconducting quantum circuits and optical photons in a fiber optic network.

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URLURL TypeDescription CentralArticle Paper
Matheny, Matthew H.0000-0002-3488-1083
Pfeifer, Hannes0000-0002-1713-6102
Painter, Oskar0000-0002-1581-9209
Additional Information:© 2020 The Author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit Received 07 October 2019; Accepted 05 June 2020; Published 06 July 2020. The authors thank A. Sipahigil for valuable discussions. This work was supported by the AFOSR-MURI Quantum Photonic Matter, the ARO-MURI Quantum Opto-Mechanics with Atoms and Nanostructured Diamond (grant N00014-15-1-2761), the Institute for Quantum Information and Matter, an NSF Physics Frontiers Center with support of the Gordon and Betty Moore Foundation, and the Kavli Nanoscience Institute at Caltech. H.R. is supported by the National Science Scholarship from A*STAR, Singapore. Data availability: The data that support the findings of this study are available from the corresponding author (O.P.) upon reasonable request. Author Contributions: H.R., G.S.M., and O.P. came up with the concept and planned the experiment. H.R., J.L., and H.P. performed the device design and fabrication. H.R., G.S.M., and M.M. performed the measurements. H.R., M.H.M., and O.P. analyzed the data. All authors contributed to the writing of the manuscript. The authors declare no competing interests.
Group:Institute for Quantum Information and Matter, Kavli Nanoscience Institute
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)UNSPECIFIED
Army Research Office (ARO)UNSPECIFIED
Office of Naval Research (ONR)N00014-15-1-2761
Institute for Quantum Information and Matter (IQIM)UNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
Kavli Nanoscience InstituteUNSPECIFIED
Agency for Science, Technology and Research (A*STAR)UNSPECIFIED
Subject Keywords:Nanocavities; Photonic crystals; Quantum information; Quantum optics
PubMed Central ID:PMC7338352
Record Number:CaltechAUTHORS:20200330-152420978
Persistent URL:
Official Citation:Ren, H., Matheny, M.H., MacCabe, G.S. et al. Two-dimensional optomechanical crystal cavity with high quantum cooperativity. Nat Commun 11, 3373 (2020).
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:102176
Deposited By: Tony Diaz
Deposited On:30 Mar 2020 22:31
Last Modified:31 Jul 2020 15:42

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