Higher-order topological polariton corner state lasing

Unlike conventional laser, the topological laser is able to emit coherent light robustly against disorders and defects because of its nontrivial band topology. As a promising platform for low-power consumption, exciton polariton topological lasers require no population inversion, a unique property t...

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Main Authors: Wu, Jinqi, Ghosh, Sanjib, Gan, Yusong, Shi, Ying, Mandal, Subhaskar, Sun, Handong, Zhang, Baile, Liew, Timothy Chi Hin, Su, Rui, Xiong, Qihua
Other Authors: School of Physical and Mathematical Sciences
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Language:English
Published: 2023
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Online Access:https://hdl.handle.net/10356/169852
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spelling sg-ntu-dr.10356-1698522023-11-08T01:21:24Z Higher-order topological polariton corner state lasing Wu, Jinqi Ghosh, Sanjib Gan, Yusong Shi, Ying Mandal, Subhaskar Sun, Handong Zhang, Baile Liew, Timothy Chi Hin Su, Rui Xiong, Qihua School of Physical and Mathematical Sciences School of Electrical and Electronic Engineering MajuLab, International Joint Research Unit UMI 3654, CNRS Science::Physics Engineering::Electrical and electronic engineering Conventional Lasers Exciton-Polariton Unlike conventional laser, the topological laser is able to emit coherent light robustly against disorders and defects because of its nontrivial band topology. As a promising platform for low-power consumption, exciton polariton topological lasers require no population inversion, a unique property that can be attributed to the part-light-part-matter bosonic nature and strong nonlinearity of exciton polaritons. Recently, the discovery of higher-order topology has shifted the paradigm of topological physics to topological states at boundaries of boundaries, such as corners. However, such topological corner states have never been realized in the exciton polariton system yet. Here, on the basis of an extended two-dimensional Su-Schrieffer-Heeger lattice model, we experimentally demonstrate the topological corner states of perovskite polaritons and achieved polariton corner state lasing with a low threshold (approximately microjoule per square centimeter) at room temperature. The realization of such polariton corner states also provides a mechanism of polariton localization under topological protection, paving the way toward on-chip active polaritonics using higher-order topology. Ministry of Education (MOE) Nanyang Technological University National Research Foundation (NRF) Published version Q.X. acknowledges the National Natural Science Foundation of China (no. 12020101003 and no. 92250301) and the strong support from the State Key Laboratory of Low Dimensional Quantum Physics and from the Tsinghua University Start-up Grant. R.S. and T.C.H.L. acknowledge support from the Singapore Ministry of Education via the AcRF Tier 3 Programme “Geometrical Quantum Materials” (MOE2018-T3-1-002). R.S. acknowledges support from the Nanyang Technological University via the Nanyang Assistant Professorship Start Up Grant. B.Z., H.S., and R.S. acknowledge the funding support from the Singapore National Research Foundation Competitive Research Program (grant no. NRF-CRP23-2019- 0007). S.G. acknowledges funding support from the Excellent Young Scientists Fund Program (Overseas) of China and the National Natural Science Foundation of China (grant No. 12274034). J.W. acknowledges the Nano Letters Seed Grants. 2023-08-08T02:06:27Z 2023-08-08T02:06:27Z 2023 Journal Article Wu, J., Ghosh, S., Gan, Y., Shi, Y., Mandal, S., Sun, H., Zhang, B., Liew, T. C. H., Su, R. & Xiong, Q. (2023). Higher-order topological polariton corner state lasing. Science Advances, 9(21), eadg4322-. https://dx.doi.org/10.1126/sciadv.adg4322 2375-2548 https://hdl.handle.net/10356/169852 10.1126/sciadv.adg4322 37224247 2-s2.0-85160134889 21 9 eadg4322 en MOE2018-T3-1-002 NAP SUG NRF-CRP23-2019-0007 Science Advances 10.21979/N9/YS6WJW © 2023 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). 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
Engineering::Electrical and electronic engineering
Conventional Lasers
Exciton-Polariton
spellingShingle Science::Physics
Engineering::Electrical and electronic engineering
Conventional Lasers
Exciton-Polariton
Wu, Jinqi
Ghosh, Sanjib
Gan, Yusong
Shi, Ying
Mandal, Subhaskar
Sun, Handong
Zhang, Baile
Liew, Timothy Chi Hin
Su, Rui
Xiong, Qihua
Higher-order topological polariton corner state lasing
description Unlike conventional laser, the topological laser is able to emit coherent light robustly against disorders and defects because of its nontrivial band topology. As a promising platform for low-power consumption, exciton polariton topological lasers require no population inversion, a unique property that can be attributed to the part-light-part-matter bosonic nature and strong nonlinearity of exciton polaritons. Recently, the discovery of higher-order topology has shifted the paradigm of topological physics to topological states at boundaries of boundaries, such as corners. However, such topological corner states have never been realized in the exciton polariton system yet. Here, on the basis of an extended two-dimensional Su-Schrieffer-Heeger lattice model, we experimentally demonstrate the topological corner states of perovskite polaritons and achieved polariton corner state lasing with a low threshold (approximately microjoule per square centimeter) at room temperature. The realization of such polariton corner states also provides a mechanism of polariton localization under topological protection, paving the way toward on-chip active polaritonics using higher-order topology.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Wu, Jinqi
Ghosh, Sanjib
Gan, Yusong
Shi, Ying
Mandal, Subhaskar
Sun, Handong
Zhang, Baile
Liew, Timothy Chi Hin
Su, Rui
Xiong, Qihua
format Article
author Wu, Jinqi
Ghosh, Sanjib
Gan, Yusong
Shi, Ying
Mandal, Subhaskar
Sun, Handong
Zhang, Baile
Liew, Timothy Chi Hin
Su, Rui
Xiong, Qihua
author_sort Wu, Jinqi
title Higher-order topological polariton corner state lasing
title_short Higher-order topological polariton corner state lasing
title_full Higher-order topological polariton corner state lasing
title_fullStr Higher-order topological polariton corner state lasing
title_full_unstemmed Higher-order topological polariton corner state lasing
title_sort higher-order topological polariton corner state lasing
publishDate 2023
url https://hdl.handle.net/10356/169852
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