Single-mode lasing based on PT-breaking of two-dimensional photonic higher-order topological insulator
Topological lasers are a new class of lasers that seek to exploit the special properties of topological states of light. A typical limiting factor in their performance is the existence of non-topological states with quality factors comparable to the desired topological states. We show theoretical...
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sg-ntu-dr.10356-1545192023-02-28T19:32:13Z Single-mode lasing based on PT-breaking of two-dimensional photonic higher-order topological insulator Zhu, Bofeng Wang, Qiang Zeng, Yongquan Wang, Qi Jie Chong, Yidong School of Physical and Mathematical Sciences School of Electrical and Electronic Engineering Division of Physics and Applied Physics Centre for Disruptive Photonic Technologies (CDPT) Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics Single-Mode Lasing PT-Symmetry Higher-Order Topological Insulators Topological lasers are a new class of lasers that seek to exploit the special properties of topological states of light. A typical limiting factor in their performance is the existence of non-topological states with quality factors comparable to the desired topological states. We show theoretically that by distributing uniform gain and loss on two sublattices of a two-dimensional higher-order topological insulator (HOTI) lattice, single-mode lasing based on topological corner states can be sustained over a wide range of pump strengths. This behavior stems from the parity/time-reversal breaking of the topological corner states, which supplies them with more effective gain than the edge and bulk states, rather than through localized pumping of the domain corners. These results point to opportunities for exploiting non-Hermitian phenomena and designing compact high performance topological lasers. Ministry of Education (MOE) National Research Foundation (NRF) Published version This work was supported by the Singapore MOE Academic Research Fund Tier 3 Grant No. MOE2016-T3-1-006, Tier 2 Grant No. MOE2018-T2-1-176, Tier 2 Grant No. MOE2016-T2-2-159, Tier 2 Grant No.MOE2019-T2-2-085, Tier 1 Grants No. RG187/18, and Singapore National Research Foundation (NRF) Competitive Research Program (CRP) (NRF-CRP18-2017-02). 2021-12-27T06:00:38Z 2021-12-27T06:00:38Z 2021 Journal Article Zhu, B., Wang, Q., Zeng, Y., Wang, Q. J. & Chong, Y. (2021). Single-mode lasing based on PT-breaking of two-dimensional photonic higher-order topological insulator. Physical Review B, 104(14), L140306-. https://dx.doi.org/10.1103/PhysRevB.104.L140306 2469-9950 https://hdl.handle.net/10356/154519 10.1103/PhysRevB.104.L140306 2-s2.0-85118497206 14 104 L140306 en MOE2016‐T3‐1‐006 MOE2018-T2-1-176 MOE2016-T2-2-159 MOE2019-T2-2-085 RG187/18 NRF-CRP18-2017-02 Physical Review B © 2021 American Physical Society. All rights reserved. This paper was published in Physical Review B and is made available with permission of American Physical Society. application/pdf |
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Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics Single-Mode Lasing PT-Symmetry Higher-Order Topological Insulators Zhu, Bofeng Wang, Qiang Zeng, Yongquan Wang, Qi Jie Chong, Yidong Single-mode lasing based on PT-breaking of two-dimensional photonic higher-order topological insulator |
description |
Topological lasers are a new class of lasers that seek to exploit the special
properties of topological states of light. A typical limiting factor in their
performance is the existence of non-topological states with quality factors
comparable to the desired topological states. We show theoretically that by
distributing uniform gain and loss on two sublattices of a two-dimensional
higher-order topological insulator (HOTI) lattice, single-mode lasing based on
topological corner states can be sustained over a wide range of pump strengths.
This behavior stems from the parity/time-reversal breaking of the topological
corner states, which supplies them with more effective gain than the edge and
bulk states, rather than through localized pumping of the domain corners. These
results point to opportunities for exploiting non-Hermitian phenomena and
designing compact high performance topological lasers. |
author2 |
School of Physical and Mathematical Sciences |
author_facet |
School of Physical and Mathematical Sciences Zhu, Bofeng Wang, Qiang Zeng, Yongquan Wang, Qi Jie Chong, Yidong |
format |
Article |
author |
Zhu, Bofeng Wang, Qiang Zeng, Yongquan Wang, Qi Jie Chong, Yidong |
author_sort |
Zhu, Bofeng |
title |
Single-mode lasing based on PT-breaking of two-dimensional photonic higher-order topological insulator |
title_short |
Single-mode lasing based on PT-breaking of two-dimensional photonic higher-order topological insulator |
title_full |
Single-mode lasing based on PT-breaking of two-dimensional photonic higher-order topological insulator |
title_fullStr |
Single-mode lasing based on PT-breaking of two-dimensional photonic higher-order topological insulator |
title_full_unstemmed |
Single-mode lasing based on PT-breaking of two-dimensional photonic higher-order topological insulator |
title_sort |
single-mode lasing based on pt-breaking of two-dimensional photonic higher-order topological insulator |
publishDate |
2021 |
url |
https://hdl.handle.net/10356/154519 |
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