Broadening of Non-Transmission Band of Ultra-Narrow Band-Pass Filters Using Heterostructures  

作　　者：王利 王占山 桑田 吴永刚 陈玲燕 刘华松 季一勤 

机构地区：[1]Institute of Precision Optical Engineering, Department of Physics, Tongji University, Shanghai 200092 [2]Tianjin Jinhang Institute of Technology Physics, Tianjin 300192

出　　处：《Chinese Physics Letters》2008年第6期2030-2032,共3页中国物理快报（英文版）

摘　　要：Transmission characteristics are studied for the hybrid structures combining defect and multiple heterostructures. It is shown that the non-transmission frequency range can be substantially enlarged and the phenomenon of narrow band-pass filter can be realized by adjusting the number, position and size of the defect. The theoretical and experimental results on heterostructures containing Ta2O5/SiO2 multilayer films are presented. With perfect non-transmission frequency range and high peak transmissivity, this structure opens a promising way to fabricate ultra-narrow band-pass filters with wide non-transmission frequency range.Transmission characteristics are studied for the hybrid structures combining defect and multiple heterostructures. It is shown that the non-transmission frequency range can be substantially enlarged and the phenomenon of narrow band-pass filter can be realized by adjusting the number, position and size of the defect. The theoretical and experimental results on heterostructures containing Ta2O5/SiO2 multilayer films are presented. With perfect non-transmission frequency range and high peak transmissivity, this structure opens a promising way to fabricate ultra-narrow band-pass filters with wide non-transmission frequency range.

关 键 词：PHOTONIC CRYSTALS FREQUENCY-RANGE PROPAGATION ENLARGEMENT MODES 

分 类 号：TN713.5[电子电信—电路与系统]