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Topological Photonics: Gauge‐Induced Floquet Topological States in Photonic Waveguides (Laser Photonics Rev. 15(8)/2021)
Author(s) -
Song Wange,
Chen Yuxin,
Li Hanmeng,
Gao Shenglun,
Wu Shengjie,
Chen Chen,
Zhu Shining,
Li Tao
Publication year - 2021
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.202170045
Subject(s) - floquet theory , photonics , topology (electrical circuits) , physics , gauge (firearms) , topological quantum number , quantum mechanics , materials science , engineering , nonlinear system , electrical engineering , metallurgy
In article number 2000584, Tao Li and co‐workers from Nanjing University experimentally demonstrated topological π modes induced by Floquet gauge transition in a silicon waveguides platform. The flexible control of the Floquet gauge provides new degrees of freedom to manipulate the topological modes and enables interesting functionalities such as asymmetric topological transport, i.e., the localization is protected only for light propagating in one direction.