Polarization-independent slow light in annular photonic crystals

被引：30
|
作者：
Wu, H. [1 ,2 ]
Citrin, D. S. [2 ,3 ]
Jiang, L. Y. [1 ]
Li, X. Y. [1 ]
机构：
[1] Nanjing Univ Sci & Technol, Dept Phys, Nanjing 210094, Jiangsu, Peoples R China
[2] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA
[3] Georgia Tech Lorraine, Unite Mixte Int Georgia Tech CNRS 2958, F-57070 Metz, France
来源：
APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 14期
基金：
美国国家科学基金会;
关键词：
WAVE-GUIDES; LOW-DISPERSION; SILICON;
D O I：
10.1063/1.4801977
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A photonic-crystal waveguide hosted in an annular photonic crystal is demonstrated theoretically to realize polarization-independent slow light. Through an appropriate set of design parameters, overlapping regions with constant group index and low group-velocity dispersion for both the transverse-electric and transverse-magnetic polarizations can be achieved in the common frequency regime of the waveguide modes. Assuming parameters for silicon and air, an optimal structure with group index of 50 and bandwidth of similar to 0.1% is found theoretically for polarization-independent slow light in this structure. (C) 2013 AIP Publishing LLC.
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页数：3
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