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Topological phonon transport in an optomechanical system

Ren, Hengjiang and Shah, Tirth and Pfeifer, Hannes and Brendel, Christian and Peano, Vittorio and Marquardt, Florian and Painter, Oskar (2021) Topological phonon transport in an optomechanical system. In: 2021 Conference on Lasers and Electro-Optics (CLEO). Optical Society of America , Washington, DC, Art. No. STu2H.3. ISBN 978-1-943580-91-0.

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We report the observation of topological phonon transport within a multiscale optomechanical crystal structure consisting of an array of over 800 cavity-optomechanical elements. Using sensitive, spatially resolved optical read-out we detect thermal phonons in a 0.325 − 0.34 GHz band traveling along a topological edge channel, with substantial reduction in backscattering. This represents an important step from the pioneering macroscopic mechanical systems work towards topological phononic systems at the nanoscale.

Item Type:Book Section
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URLURL TypeDescription Paper ItemJournal Article
Pfeifer, Hannes0000-0002-1713-6102
Peano, Vittorio0000-0003-1931-5080
Marquardt, Florian0000-0003-4566-1753
Painter, Oskar0000-0002-1581-9209
Additional Information:© 2021 The Author(s). The authors would like to thank Sameer Sonar and Utku Hatipoglu for the help with nanofabrication and measurement. This work was supported by the Gordon and Betty Moore Foundation (award #7435) and the Kavli Nanoscience Institute at Caltech. H.R. was supported by the National Science Scholarship from A*STAR, Singapore. T.S. and F.M. acknowledge support from the European Unions Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No. 722923 (OMT). V.P. acknowledges support by the Julian Schwinger Foundation (Grant No. JSF-16-03-0000). F.M. acknowledges support from the European Unions Horizon 2020 Research and Innovation program under Grant No. 732894, Future and Emerging Technologies (FET)-Proactive Hybrid Optomechanical Technologies (HOT).
Group:Institute for Quantum Information and Matter, Kavli Nanoscience Institute
Funding AgencyGrant Number
Gordon and Betty Moore Foundation7435
Kavli Nanoscience InstituteUNSPECIFIED
Agency for Science, Technology and Research (A*STAR)UNSPECIFIED
Marie Curie Fellowship722923
Julian Schwinger FoundationJSF-16-03-0000
European Research Council (ERC)732894
Classification Code:OCIS codes: 220.4880, 230.5298, 270.5585
Record Number:CaltechAUTHORS:20200915-092939162
Persistent URL:
Official Citation:H. Ren, T. Shah, H. Pfeifer, C. Brendel, V. Peano, F. Marquardt, and O. Painter, "Topological phonon transport in an optomechanical system," in Conference on Lasers and Electro-Optics, J. Kang, S. Tomasulo, I. Ilev, D. Müller, N. Litchinitser, S. Polyakov, V. Podolskiy, J. Nunn, C. Dorrer, T. Fortier, Q. Gan, and C. Saraceno, eds., OSA Technical Digest (Optical Society of America, 2021), paper STu2H.3.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:105384
Deposited By: Joy Painter
Deposited On:15 Sep 2020 17:55
Last Modified:22 Jun 2022 21:59

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