Optical properties of the two-port resonant tunneling filters in two-dimensional photonic crystal slabs

被引：0
|
作者：
任承 [1 ]
程立锋 [1 ]
康凤 [2 ]
甘霖 [3 ]
张道中 [3 ]
李志远 [3 ]
机构：
[1] School of Opto-Electronic Information Science and Technology,Yantai University
[2] Wenjing College,Yantai University
[3] Optical Physics Laboratory,Institute of Physics,Chinese Academy of Sciences
来源：
Chinese Physics B | 2012年 / 21卷 / 10期
基金：
中国国家自然科学基金;
关键词：
photonic crystal slabs; finite-difference time-domain method;
D O I：
暂无
中图分类号：
TN713 [滤波技术、滤波器];
学科分类号：
080902 ;
摘要：
We have designed and fabricated two types of two-port resonant tunneling filters with a triangular air-hole lattice in two-dimensional photonic crystal slabs.In order to improve the filtering efficiency,a feedback method is introduced by closing the waveguide.It is found that the relative position between the closed waveguide boundary and the resonator has an important impact on the dropping efficiency.Based on our analyses,two different types of filters are designed.The transmission spectra and scattering-light far-field patterns are measured,which agree well with theoretical prediction.In addition,the resonant filters are highly sensitive to the size of the resonant cavities,which are useful for practical applications.
引用
收藏
页码：306 / 311
页数：6
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