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Photonic Crystals: Twisted Quadrupole Topological Photonic Crystals (Laser Photonics Rev. 14(8)/2020)
Author(s) -
Zhou Xiaoxi,
Lin ZhiKang,
Lu Weixin,
Lai Yun,
Hou Bo,
Jiang JianHua
Publication year - 2020
Publication title -
laser and photonics reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.778
H-Index - 116
eISSN - 1863-8899
pISSN - 1863-8880
DOI - 10.1002/lpor.202070046
Subject(s) - photonics , photonic crystal , topology (electrical circuits) , physics , laser , quadrupole , heterojunction , optics , optoelectronics , photonic metamaterial , materials science , condensed matter physics , quantum mechanics , mathematics , combinatorics
Twisting is a novel way for the manipulation of waves in 2D electronic and photonic systems. While Moiré patterns are formed in twisting bilayers or multi‐layers, in article number 2000010, Bo Hou, Jian‐Hua Jiang, and co‐workers demonstrate that lateral heterostructures of twisted 2D photonic crystals give rise to higher‐order topology—a phenomenon where topological physics emerge concurrently at multiple dimensions in a single system.