Topological valley photonics : physics and device applications

Topological photonics has emerged as a promising field in photonics that is able to shape the science and technology of light. As a significant degree of freedom, valley is introduced to design and construct photonic topological phases, with encouraging recent progress in applications ranging from o...

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Main Authors: Xue, Haoran, Yang, Yihao, Zhang, Baile
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2022
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Online Access:https://hdl.handle.net/10356/154810
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1548102023-02-28T19:44:27Z Topological valley photonics : physics and device applications Xue, Haoran Yang, Yihao Zhang, Baile School of Physical and Mathematical Sciences Science::Physics::Optics and light Topological Photonics Valley Photonic Crystals Topological photonics has emerged as a promising field in photonics that is able to shape the science and technology of light. As a significant degree of freedom, valley is introduced to design and construct photonic topological phases, with encouraging recent progress in applications ranging from on-chip communications to terahertz lasers. Herein, the development of topological valley photonics is reviewed, from both perspectives of fundamental physics and practical applications. The unique valley-contrasting physics determines that the bulk topology and the bulk-boundary correspondence in valley photonic topological phases exhibit different properties from other photonic topological phases. Valley conservation allows not only robust propagation of light through sharp corners, but also 100% out-coupling of topological states to the surrounding environment. Finally, robust valley transport requires no magnetic materials or the complex construction of photonic pseudospin and, thus, can be integrated on compact photonic platforms for future technologies. Ministry of Education (MOE) Published version This work was supported by the Ministry of Education, Singapore, under its Tier 3 Grand Award MOE2016-T3-1-006 and Tier 2 Grant Award MOE2018-T2-1-022 (S). 2022-01-10T07:12:40Z 2022-01-10T07:12:40Z 2021 Journal Article Xue, H., Yang, Y. & Zhang, B. (2021). Topological valley photonics : physics and device applications. Advanced Photonics Research, 2(8), 2100013-. https://dx.doi.org/10.1002/adpr.202100013 2699-9293 https://hdl.handle.net/10356/154810 10.1002/adpr.202100013 8 2 2100013 en MOE2016-T3-1-006 MOE2018-T2-1-022 (S) Advanced Photonics Research © 2021 The Authors. This article is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0). To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Science::Physics::Optics and light
Topological Photonics
Valley Photonic Crystals
spellingShingle Science::Physics::Optics and light
Topological Photonics
Valley Photonic Crystals
Xue, Haoran
Yang, Yihao
Zhang, Baile
Topological valley photonics : physics and device applications
description Topological photonics has emerged as a promising field in photonics that is able to shape the science and technology of light. As a significant degree of freedom, valley is introduced to design and construct photonic topological phases, with encouraging recent progress in applications ranging from on-chip communications to terahertz lasers. Herein, the development of topological valley photonics is reviewed, from both perspectives of fundamental physics and practical applications. The unique valley-contrasting physics determines that the bulk topology and the bulk-boundary correspondence in valley photonic topological phases exhibit different properties from other photonic topological phases. Valley conservation allows not only robust propagation of light through sharp corners, but also 100% out-coupling of topological states to the surrounding environment. Finally, robust valley transport requires no magnetic materials or the complex construction of photonic pseudospin and, thus, can be integrated on compact photonic platforms for future technologies.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Xue, Haoran
Yang, Yihao
Zhang, Baile
format Article
author Xue, Haoran
Yang, Yihao
Zhang, Baile
author_sort Xue, Haoran
title Topological valley photonics : physics and device applications
title_short Topological valley photonics : physics and device applications
title_full Topological valley photonics : physics and device applications
title_fullStr Topological valley photonics : physics and device applications
title_full_unstemmed Topological valley photonics : physics and device applications
title_sort topological valley photonics : physics and device applications
publishDate 2022
url https://hdl.handle.net/10356/154810
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