• Chinese Optics Letters
  • Vol. 19, Issue 5, 052602 (2021)
Hui Liu1, Boyang Xie1, Hua Cheng1、*, Jianguo Tian1, and Shuqi Chen1、2、3、**
Author Affiliations
  • 1Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, School of Physics and TEDA Institute of Applied Physics, Nankai University, Tianjin 300071, China
  • 2Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
  • 3Collaborative Innovation Center of Light Manipulations and Applications, Shandong Normal University, Jinan 250358, China
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    Abstract

    Topological photonics provides a new opportunity for the examination of novel topological properties of matter, in which the energy band theory and ideas in topology are utilized to manipulate the propagation of photons. Since the discovery of topological insulators in condensed matter, researchers have studied similar topological effects in photonics. Topological photonics can lead to materials that support the robust unidirectional propagation of light without back reflections. This ideal transport property is unprecedented in traditional optics and may lead to radical changes in integrated optical devices. In this review, we present the exciting developments of topological photonics and focus on several prominent milestones of topological phases in photonics, such as topological insulators, topological semimetals, and higher-order topological phases. We conclude with the prospect of novel topological effects and their applications in topological photonics.
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    C=12πF(k)·ds,

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    Pi=1(2π)2BZd2kTr[Ai],i=1,2.

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    Copy Citation Text
    Hui Liu, Boyang Xie, Hua Cheng, Jianguo Tian, Shuqi Chen. Topological photonic states in artificial microstructures [Invited][J]. Chinese Optics Letters, 2021, 19(5): 052602
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    Category: Physical Optics
    Received: Oct. 24, 2020
    Accepted: Dec. 21, 2020
    Published Online: Feb. 4, 2021
    The Author Email: Hua Cheng (hcheng@nankai.edu.cn), Shuqi Chen (schen@nankai.edu.cn)