Generalized laws of refraction and reflection at interfaces between different photonic artificial gauge fields

作     者：Moshe-Ishay Cohen Christina Jörg Yaakov Lumer Yonatan Plotnik Erik H.Waller Julian Schulz Georg von Freymann Mordechai Segev Moshe-Ishay Cohen;Christina J?rg;Yaakov Lumer;Yonatan Plotnik;Erik H.Waller;Julian Schulz;Georg von Freymann;Mordechai Segev

作者机构：Physics DepartmentTechnion-Israel Institute of TechnologyHaifa 32000Israel Solid State InstituteTechnion-Israel Institute of TechnologyHaifa 32000Israel Physics Department and Research Center OPTIMASTU Kaiserslautern67663 KaiserslauternGermany Department of PhysicsThe Pennsylvania State UniversityState CollegePA 16802USA Fraunhofer Institute for Industrial Mathematics ITWM67663 KaiserslauternGermany 

出 版 物：《Light(Science & Applications)》 (光（科学与应用)（英文版）)

年 卷 期：2020年第9卷第1期

页      面：45-55页

核心收录：

学科分类：07[理学] 070201[理学-理论物理] 0702[理学-物理学] 

基　　金：support by the Deutsche Forschungsgemeinschaft through CRC/Transregio 185 OSCAR(project No.277625399) support by an ERC Advanced Grant,by the Israel Science Foundation by the German-Israel DIP project 

主　　题：gauge refraction interface 

摘      要：Artificial gauge fields the control over the dynamics of uncharged particles by engineering the potential landscape such that the particles behave as if effective external fields are acting on *** years have witnessed a growing interest in artificial gauge fields generated either by the geometry or by time-dependent modulation,as they have been enablers of topological phenomena and synthetic dimensions in many physical settings,e.g.,photonics,cold atoms,and acoustic ***,we formulate and experimentally demonstrate the generalized laws of refraction and reflection at an interface between two regions with different artificial gauge *** use the symmetries in the system to obtain the generalized Snell law for such a gauge interface and solve for reflection and *** identify total internal reflection(TIR)and complete transmission and demonstrate the concept in *** addition,we calculate the artificial magnetic flux at the interface of two regions with different artificial gauge fields and present a method to concatenate several gauge *** an example,we propose a scheme to make a gauge imaging system-a device that can reconstruct(image)the shape of an arbitrary wavepacket launched from a certain position to a predesigned location.