Bandgap of a three-dimensional dyed polystyrene photonic crystal from optical absorption

被引:1
|
作者
Ha, Na Young [1 ]
Wu, Jeong Weon
Park, Byoungchoo
机构
[1] Ewha Womans Univ, Dept Phys, Seoul 120750, South Korea
[2] Kwangwoon Univ, Dept Elect, Seoul 139701, South Korea
关键词
D O I
10.1364/JOSAB.23.000958
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The role of a strong dye absorption in determining the photonic bandgap (PBG) shape of a three-dimensional dyed photonic crystal, fabricated from dyed polystyrene nanospheres, is investigated. When the dye absorption peaks fall on the PBG spectral position, the PBG has a distorted shape, narrow top, and wide bottom. Theoretical analysis shows that the characteristic PBG shape results from two superimposed contributions with distinct origins, i.e., a Bragg reflection and a high reflection associated with the strong dye absorption. (c) 2006 Optical Society of America
引用
收藏
页码:958 / 962
页数:5
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