二维全息光子晶体禁带展宽方法  

Research on Broadening Band Gaps of Two Dimensional Holographic Photonic Crystals

作　　者：崔丽彬[1] 薛红玲[1] 孔炎[1] 邱菊[1] 娄汝辰[1] 张帅[1] 马思嘉[1] 

机构地区：[1]北京工业大学实验学院,北京101101

出　　处：《北京工业大学学报》2010年第7期999-1003,共5页Journal of Beijing University of Technology

基　　金：北京工业大学博士启动基金资助项目(X0024000200901)

摘　　要：讨论了二维复周期全息光子晶体禁带展宽的方法,二维复周期全息光子晶体可以使禁带成倍展宽.此外发现二维全息光子晶体中,除原来预期的禁带外,还出现了附加的禁带.当记录光波的入射角小于某个临界值,并且满足一定数值时,附加的禁带会使二维禁带进一步展宽;而当入射角超过临界值时,禁带会消失,这时禁带反而会变窄.这一现象对制作二维宽带隙光子晶体具有指导意义.In this thesis,the author proposed a simple approach to fabricating 2-D holographic photonic crystal with large band-gaps,and have discussed the factors that influence on broadening the band-gaps.It was found that a unexpected diffracted peak is always accompany the designed and expected peaks.Also,one of the expected peaks will disappear if incident angle during recording is larger than a critical value.On the other hand,the extra diffraction peak will enlarge the band-gap if incident angle is less than a certain value,but when angle is larger than the certain value,one of the expected main peaks will disappear,and the band-gap will get narrow instead.This phenomenon is guidable for fabrication of 2-D holographic photonic crystals with broadened band-gap.

关 键 词：全息 光子晶体 复周期结构 宽禁带 

分 类 号：TN65[电子电信—电路与系统]