%0 Journal Article
%T Application of Genetic Algorithm to the Design of Omnidirectional Reflectors in Visible Region*<br>利用遗传算法设计可见光波段全能反射器
%A JIANG Li-yong
%A ZHENG Gai-ge
%A DONG Qiu-yun
%A LI Xiang-yin
%A <br>蒋立勇
%A 郑改革
%A 董秋云
%A 李相银
%J 光子学报
%D 2009
%I 
%X A novel application of genetic algorithm (GA) in designing broad omnidirectional reflectors was introduced. The key is to search the best combination style and thickness ratios of different one-dimension (1D) quasi-periodic (QP) photonic crystals (PCs) to form a photonic heterostructure. Using the transmission matrix method (TMM), the transmission properties of electromagnetic wave in 1D QP systems were investigated. Numerical results show that the omnidirectional reflection (ODR) band of 1D QP PCs is effected by the unit cell and period number. Based on these rules, the best combination schemes for heterostructures was found out and two perfect omnidirectional reflectors for application in visible region were obtained. For instance, a high reflector described as (HLLHL)13(HL)13( LHL)15, where nL=1.46, nH=2.6, dL=0.218λ0/nL, and dH=0.201λ0/nH, is achieved to provide ODR bandwidth of 88.42% (446 nm~779 nm) in visible region.
%K Omnidirectional reflectors
%K Quasi-periodic
%K One-dimension photonic crystal
%K Transmission matrix method
%K Genetic algorithm<br>全能反射器
%K 准周期
%K 一维光子晶体
%K 传输矩阵法
%K 遗传算法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=B0C9B34DFE04DA595C67ADB52AEECE4E&yid=DE12191FBD62783C&vid=16D8618C6164A3ED&iid=B31275AF3241DB2D&sid=71F658B36F902583&eid=A67C4D140E145357&journal_id=1004-4213&journal_name=光子学报&referenced_num=1&reference_num=17