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Generalized non-reciprocity in an optomechanical circuit via synthetic magnetism and reservoir engineering

Fang, Kejie and Luo, Jie and Metelmann, Anja and Matheny, Mathew H. and Marquardt, Florian and Clerk, Aashish A. and Painter, Oskar (2017) Generalized non-reciprocity in an optomechanical circuit via synthetic magnetism and reservoir engineering. Nature Physics, 13 (5). pp. 465-471. ISSN 1745-2473. doi:10.1038/nphys4009.

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Synthetic magnetism has been used to control charge neutral excitations for applications ranging from classical beam steering to quantum simulation. In optomechanics, radiation-pressure-induced parametric coupling between optical (photon) and mechanical (phonon) excitations may be used to break time-reversal symmetry, providing the prerequisite for synthetic magnetism. Here we design and fabricate a silicon optomechanical circuit with both optical and mechanical connectivity between two optomechanical cavities. Driving the two cavities with phase-correlated laser light results in a synthetic magnetic flux, which, in combination with dissipative coupling to the mechanical bath, leads to non-reciprocal transport of photons with 35 dB of isolation. Additionally, optical pumping with blue-detuned light manifests as a particle non-conserving interaction between photons and phonons, resulting in directional optical amplification of 12 dB in the isolator through-direction. These results suggest the possibility of using optomechanical circuits to create a more general class of non-reciprocal optical devices, and further, to enable new topological phases for both light and sound on a microchip.

Item Type:Article
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URLURL TypeDescription Paper ReadCube access
Matheny, Mathew H.0000-0002-3488-1083
Marquardt, Florian0000-0003-4566-1753
Clerk, Aashish A.0000-0001-7297-9068
Painter, Oskar0000-0002-1581-9209
Additional Information:© 2017 Macmillan Publishers Limited, part of Springer Nature. Received 18 August 2016 Accepted 09 December 2016 Published online 16 January 2017. The authors would like to thank M. Roukes for the use of his atomic force microscope in the nano-oxidation tuning of the cavities. 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 University of Chicago Quantum Engineering Program (A.A.C., A.M.), the ERC Starting Grant OPTOMECH (F.M.), the Institute for Quantum Information and Matter, an NSF Physics Frontiers Center (grant PHY-1125565) with support of the Gordon and Betty Moore Foundation, and the Kavli Nanoscience Institute at Caltech. Author Contributions: K.F., F.M., A.M., A.A.C. and O.P. came up with the concept. K.F., O.P. and J.L. planned the experiment. K.F., J.L. and M.H.M. performed the device design and fabrication. K.F. and J.L. performed the measurements. K.F., J.L., A.M., A.A.C. and O.P. analysed the data. All authors contributed to the writing of the manuscript. The authors declare no competing financial 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
University of ChicagoUNSPECIFIED
European Research Council (ERC)UNSPECIFIED
Institute for Quantum Information and Matter (IQIM)UNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
Kavli Nanoscience InstituteUNSPECIFIED
Issue or Number:5
Record Number:CaltechAUTHORS:20160824-093734211
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:69891
Deposited By: Joy Painter
Deposited On:24 Aug 2016 22:06
Last Modified:11 Nov 2021 04:21

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