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. https://resolver.caltech.edu/CaltechAUTHORS:20200915-092939162
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Abstract
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.
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| 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 | ||||||||||||||
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| Classification Code: | OCIS codes: 220.4880, 230.5298, 270.5585 | ||||||||||||||
| DOI: | 10.1364/CLEO_SI.2021.STu2H.3 | ||||||||||||||
| Record Number: | CaltechAUTHORS:20200915-092939162 | ||||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20200915-092939162 | ||||||||||||||
| 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 | ||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||
| Deposited By: | Joy Painter | ||||||||||||||
| Deposited On: | 15 Sep 2020 17:55 | ||||||||||||||
| Last Modified: | 22 Jun 2022 21:59 |
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