Negative refraction mediated by bound states in the continuum

作     者：ZHANYUAN ZHANG FEIFEI QIN YI XU SONGNIAN FU YUNCAI WANG YUWEN QIN 

作者机构：Department of Electronic EngineeringCollege of Information Science and TechnologyJinan UniversityGuangzhou 510632China Advanced Institute of Photonics TechnologySchool of Information Engineeringand Guangdong Provincial Key Laboratory of Information Photonics TechnologyGuangdong University of TechnologyGuangzhou 510006China 

出 版 物：《Photonics Research》 (光子学研究（英文版）)

年 卷 期：2021年第9卷第8期

页      面：1592-1597页

核心收录：

学科分类：070207[理学-光学] 07[理学] 0702[理学-物理学] 

基　　金：National Key Research and Development Program of China(2018YFB1801001) National Natural Science Foundation of China(91750110) Guangdong Introducing Innovative and Entrepreneurial Teams of the Pearl River Talent Recruitment Program(2019ZT08X340) Research and Development Plan in Key Areas of Guangdong Province(2018B010114002) Pearl River Nova Program of Guangzhou(201806010040) 

主　　题：refraction continuum radiative 

摘      要：Negative refraction might occur at the interface between a two-dimensional photonic crystal(Ph C)slab and a homogeneous medium,where the guiding of the electromagnetic wave along the third dimension is governed by total internal ***,we report on the observation of negative refraction in the Ph C slab where the vertical guiding is enabled by a bound state in the continuum and essentially beyond the light *** abnormal refraction and guiding mechanism are based on the synchronous crafting of spatial dispersion and the radiative lifetime of Bloch modes within the radiative *** experiments are provided to further validate the numerical proposal in an all-dielectric Ph C *** is envisioned that the negative refraction observed beyond the light cone might facilitate the development of optical devices in integrated optics,such as couplers,multiplexers,and demultiplexers.