Polarization- and direction-independent defect modes in a wide incident-angle range within Bragg gaps by photonic heterostructures containing negative-index materials

被引：0
作者：
M. Lin
J. Xu
Y. Fang
G. Qiu
Z. Ouyang
机构：
[1] University of Electronic Science and Technology of China,School of Physical Electronics
[2] THz Technical Research Center of Shenzhen University,College of Electronic Science and Technology
[3] Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology,Department of Physics
[4] Shenzhen University,undefined
[5] Zhenjiang Watercraft College,undefined
来源：
Applied Physics B | 2010年 / 98卷
关键词：
Photonic Crystal; Incident Angle; Defect Mode; Transfer Matrix Method; Defect Layer;
D O I：
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中图分类号：
学科分类号：
摘要：
We propose a type of photonic heterostructure by combining dielectric one-dimensional (1D) defective photonic crystals (PCs) and magnetic 1D defective PCs. Both of the two PCs consist of alternating positive-index-material (PIM) layers with a negative-index-material (NIM) defect layer. It is demonstrated by transfer matrix method that there is a polarization- and direction-independent defect mode in a wide incident-angle range within Bragg gaps in the heterostructure. The field distributions prove that the dielectric 1D defective PC benefits to achieve the approximately omnidirectional defect mode for TE waves while the magnetic 1D defective PC benefits for TM waves. Such a structure is useful for designing polarization-independent and omnidirectional or large incident angle narrow-passband filters in optical devices.
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页码：803 / 807
页数：4
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