Nontrivial band geometry in an optically active system

Optical activity, also called circular birefringence, is known for two hundred years, but its applications for topological photonics remain unexplored. Unlike the Faraday effect, the optical activity provokes rotation of the linear polarization of light without magnetic effects, thus preserving the...

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Autores principales: Ren, Jiahuan, Liao, Qing, Li, Feng, Li, Yiming, Bleu, Olivier, Malpuech, Guillaume, Yao, Jiannian, Fu, Hongbing, Solnyshkov, Dmitry
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7846789/
https://www.ncbi.nlm.nih.gov/pubmed/33514702
http://dx.doi.org/10.1038/s41467-020-20845-2
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author Ren, Jiahuan
Liao, Qing
Li, Feng
Li, Yiming
Bleu, Olivier
Malpuech, Guillaume
Yao, Jiannian
Fu, Hongbing
Solnyshkov, Dmitry
author_facet Ren, Jiahuan
Liao, Qing
Li, Feng
Li, Yiming
Bleu, Olivier
Malpuech, Guillaume
Yao, Jiannian
Fu, Hongbing
Solnyshkov, Dmitry
author_sort Ren, Jiahuan
collection PubMed
description Optical activity, also called circular birefringence, is known for two hundred years, but its applications for topological photonics remain unexplored. Unlike the Faraday effect, the optical activity provokes rotation of the linear polarization of light without magnetic effects, thus preserving the time-reversal symmetry. In this work, we report a direct measurement of the Berry curvature and quantum metric of the photonic modes of a planar cavity, containing a birefringent organic microcrystal (perylene) and exhibiting emergent optical activity. This experiment, performed at room temperature and at visible wavelength, establishes the potential of organic materials for implementing non-magnetic and low-cost topological photonic devices.
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spelling pubmed-78467892021-02-08 Nontrivial band geometry in an optically active system Ren, Jiahuan Liao, Qing Li, Feng Li, Yiming Bleu, Olivier Malpuech, Guillaume Yao, Jiannian Fu, Hongbing Solnyshkov, Dmitry Nat Commun Article Optical activity, also called circular birefringence, is known for two hundred years, but its applications for topological photonics remain unexplored. Unlike the Faraday effect, the optical activity provokes rotation of the linear polarization of light without magnetic effects, thus preserving the time-reversal symmetry. In this work, we report a direct measurement of the Berry curvature and quantum metric of the photonic modes of a planar cavity, containing a birefringent organic microcrystal (perylene) and exhibiting emergent optical activity. This experiment, performed at room temperature and at visible wavelength, establishes the potential of organic materials for implementing non-magnetic and low-cost topological photonic devices. Nature Publishing Group UK 2021-01-29 /pmc/articles/PMC7846789/ /pubmed/33514702 http://dx.doi.org/10.1038/s41467-020-20845-2 Text en © The Author(s) 2021 Open Access 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 http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Ren, Jiahuan
Liao, Qing
Li, Feng
Li, Yiming
Bleu, Olivier
Malpuech, Guillaume
Yao, Jiannian
Fu, Hongbing
Solnyshkov, Dmitry
Nontrivial band geometry in an optically active system
title Nontrivial band geometry in an optically active system
title_full Nontrivial band geometry in an optically active system
title_fullStr Nontrivial band geometry in an optically active system
title_full_unstemmed Nontrivial band geometry in an optically active system
title_short Nontrivial band geometry in an optically active system
title_sort nontrivial band geometry in an optically active system
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7846789/
https://www.ncbi.nlm.nih.gov/pubmed/33514702
http://dx.doi.org/10.1038/s41467-020-20845-2
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