Optical bound states in the continuum in periodic structures:mechanisms,effects,and applications  

作　　者：Jiajun Wang Peishen Li Xingqi Zhao Zhiyuan Qian Xinhao Wang Feifan Wang Xinyi Zhou Dezhuan Han Chao Peng Lei Shi Jian Zi 

机构地区：[1]State Key Laboratory of Surface Physics,Key Laboratory of Micro-and Nano-Photonic Structures(Ministry of Education)and Department of Physics,Fudan University,Shanghai,China [2]State Key Laboratory of Advanced Optical Communication Systems and Networks,School of Electronics,Peking University,Beijing,China [3]College of Physics,Chongqing University,Chongqing,China [4]Institute for Nanoelectronic devices and Quantum computing,Fudan University,Shanghai,China [5]Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing,China [6]Shanghai Research Center for Quantum Sciences,Shanghai,China

出　　处：《Photonics Insights》2024年第1期1-26,共26页光子学评论（英文）

基　　金：supported by the National Natural Science Foundation of China(Nos.12234007,12221004,12321161645,62325501,62135001,12074049,and 12147102);the National Key R and D Program of China(Nos.2022YFA1404804,2021YFA1400603,and 2023YFA1406900);the Major Program of National Natural Science Foundation of China(Nos.T2394480 and T2394481);the Science and Technology Commission of Shanghai Municipality(Nos.22142200400,21DZ1101500,2019SHZDZX01,and 23DZ2260100);the Fundamental Research Funds for the Central Universities(No.2022CDJQY-007);supported by the China National Postdoctoral Program for Innovative Talents(No.BX20230079);the China Postdoctoral Science Foundation(No.2023M740721).

摘　　要：Optical bound states in the continuum(BICs)have recently stimulated a research boom,accompanied by demonstrations of abundant exotic phenomena and applications.With ultrahigh quality(Q)factors,optical BICs have powerful abilities to trap light in optical structures from the continuum of propagation waves in free space.Besides the high Q factors enabled by the confined properties,many hidden topological characteristics were discovered in optical BICs.Especially in periodic structures with well-defined wave vectors,optical BICs were discovered to carry topological charges in momentum space,underlying many unique physical properties.Both high Q factors and topological vortex configurations in momentum space enabled by BICs bring new degrees of freedom to modulate light.BICs have enabled many novel discoveries in light-matter interactions and spin-orbit interactions of light,and BIC applications in lasing and sensing have also been well explored with many advantages.In this paper,we review recent developments of optical BICs in periodic structures,including the physical mechanisms of BICs,explored effects enabled by BICs,and applications of BICs.In the outlook part,we provide a perspective on future developments for BICs.

关 键 词：bound state in the continuum light trapping topological charge polarization vortex momentum space light field manipulation photonic crystal slab NANOPHOTONICS 

分 类 号：O43[机械工程—光学工程]