Controllable tune of the cutoff frequencies in a photonic crystal waveguide with hexagonal lattice  

作　　者：ZHU KongTao DENG TianSong SUN Yan ZHANG QiFeng WU JinLei 

机构地区：[1]Key Laboratory for the Physics and Chemistry of Nanodevices,Department of Electronics,Peking University

出　　处：《Science China(Physics,Mechanics & Astronomy)》2013年第6期1079-1084,共6页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the Ministry of Science and Technology of China (Grant No. 2007CB936204);the National Natural Science Foundation of China (Grant Nos. 61271050,61076057 and 61171023)

摘　　要：In this paper,configuration parameters of the waveguide are altered independently or simultaneously to control the cutoff frequencies of the guided band.The independent control range of the upper and lower cutoff frequencies is 55.0% and 63.9% of the photonic band gap(PBG),respectively.The regulating range of the simultaneous tuning can be as large as 28.6% in terms of the PBG,or 240% in terms of the bandwidth.This tuning cutoff frequency method provides an efficient way to tailor the guided band and further tune the optical properties of PhCWs.In this paper,configuration parameters of the waveguide are altered independently or simultaneously to control the cutoff frequencies of the guided band.The independent control range of the upper and lower cutoff frequencies is 55.0% and 63.9% of the photonic band gap（PBG）,respectively.The regulating range of the simultaneous tuning can be as large as 28.6% in terms of the PBG,or 240% in terms of the bandwidth.This tuning cutoff frequency method provides an efficient way to tailor the guided band and further tune the optical properties of PhCWs.

关 键 词：photonic crystal WAVEGUIDE cutoff frequency coupled mode controllable tune 

分 类 号：TN814[电子电信—信息与通信工程]