Fundamentals and applications of photonic waveguides with bound states in the continuum  

作　　者：Zejie Yu He Gao Yi Wang Yue Yu Hon Ki Tsang Xiankai Sun Daoxin Dai 

机构地区：[1]Centre for Optical and Electromagnetic Research,State Key Laboratory for Modern Optical Instrumentation,Zhejiang Provincial Key Labora-tory for Sensing Technologies,International Research Center for Advanced Photonics,College of Optical Science and Engineering,Zhejiang Uni-versity,Hangzhou 310058,China [2]Department of Electronic Engineering,The Chinese University of Hong Kong,Shatin,New Territories,Hong Kong SAR,China [3]Jiaxing Key Laboratory of Photonic Sensing&Intelligent Imaging,Jiaxing 314000,China [4]Intelligent Optics&Photonics Research Center,Jiaxing Research Institute Zhejiang University,Jiaxing 314000,China [5]Ningbo Research Institute,Zhejiang University,Ningbo 315100,China

出　　处：《Journal of Semiconductors》2023年第10期11-24,共14页半导体学报（英文版）

基　　金：Project supported by the National Key Research and Development Program of China (2021YFB2800404);National Natural Science Foundation of China (62105283);Zhejiang Provincial Natural Science Foundation of China (LDT23F04012F05);Leading Innovative and Entrepreneur Team Introduction Program of Zhejiang (2021R01001)

摘　　要：Photonic waveguides are the most fundamental element for photonic integrated circuits(PICs).Waveguide properties,such as propagation loss,modal areas,nonlinear coefficients,etc.,directly determine the functionalities and performance of PICs.Recently,the emerging waveguides with bound states in the continuum(BICs)have opened new opportunities for PICs because of their special properties in resonance and radiation.Here,we review the recent progress of PICs composed of waveguides with BICs.First,fundamentals including background physics and design rules of a BIC-based waveguide will be introduced.Next,two types of BIC-based waveguide structures,including shallowly etched dielectric and hybrid waveguides,will be presented.Lastly,the challenges and opportunities of PICs with BICs will be discussed.

关 键 词：photonic waveguide bound states in the continuum integrated photonics 

分 类 号：TN252[电子电信—物理电子学] TN40