Broad omnidirectional high-precision filters design using genetic algorithm

被引：7
|
作者：
Jia, Wei [1 ]
Jiang, Liyong [1 ]
Zheng, Gaige [1 ]
Li, Xiangyin [1 ]
Li, Haipeng [1 ]
机构：
[1] Nanjing Univ Sci & Technol, Sch Sci, Nanjing 210094, Jiangsu, Peoples R China
来源：
OPTICS AND LASER TECHNOLOGY | 2010年 / 42卷 / 02期
关键词：
High-precision filters; Photonic heterostructure; Genetic algorithm; DIMENSIONAL PHOTONIC CRYSTALS; DEFECT MODES; REFLECTION; FREQUENCY;
D O I：
10.1016/j.optlastec.2009.08.013
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An application of the genetic algorithm in designing omnidirectional optical filters is reported in this paper. Concerning different periodic numbers and thickness ratios in the heterostructure, we gave some optimization examples and finally achieved a photonic heterostructure with very broad omnidirectional filter bandwidth as well as a very narrow transmission window. And it is found that when the normal incident beam is tilted at a negligibly small angle, the perfect transmittance peak will vanish. Hence, this heterostructure can be regarded as omnidirectional high-precision filters with potential application in optical filters, optical switches, and many other optical telecommunication areas. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：382 / 386
页数：5
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