Mehrabad, M.J., Foster, A.P. orcid.org/0000-0002-5817-0008, Dost, R. et al. (5 more authors) (2020) Chiral topological photonics with an embedded quantum emitter. Optica, 7 (12). pp. 1690-1696. ISSN 2334-2536
Abstract
Topological photonic interfaces support topologically nontrivial optical modes with helical character. When combined with an embedded quantum emitter that has a circularly polarized transition dipole moment, a chiral quantum optical interface is formed due to spin-momentum locking. Here, we experimentally realize such an interface by integrating semiconductor quantum dots into a valley-Hall topological photonic crystal waveguide. We harness the robust waveguide transport to create a ring resonator that supports helical modes. Chiral coupling of quantum dot transitions, with directional contrast as high as 75%, is demonstrated. The interface also supports a topologically trivial mode, comparison with which allows us to clearly demonstrate the protection afforded by topology to the nontrivial mode.
Metadata
| Item Type: | Article |
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| Authors/Creators: |
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| Copyright, Publisher and Additional Information: | © 2020 Optical Society of America. Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/). Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. |
| Keywords: | physics.optics; physics.optics; physics.app-ph; quant-ph |
| Dates: |
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| Institution: | The University of Sheffield |
| Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) |
| Depositing User: | Symplectic Sheffield |
| Date Deposited: | 08 Jan 2020 15:27 |
| Last Modified: | 10 Dec 2020 12:01 |
| Status: | Published |
| Publisher: | Optical Society of America |
| Refereed: | Yes |
| Identification Number: | 10.1364/OPTICA.393035 |
| Related URLs: | |
| Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:154973 |

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