Light propagation in opal heterojunctions

被引：10
|
作者：
Romanov, SG [1 ]
Chigrin, DN [1 ]
Torres, CMS [1 ]
Gaponik, N [1 ]
Eychmüller, A [1 ]
Rogach, AL [1 ]
Egen, M [1 ]
Zentel, R [1 ]
机构：
[1] Univ Gesamthsch Wuppertal, Inst Mat Sci, Dept Elect & Informat Engn, D-42097 Wuppertal, Germany
来源：
PHOTONIC CRYSTAL MATERIALS AND NANOSTRUCTURES | 2004年 / 5450卷
关键词：
photonic crystal; opal; heterojunction; planar defect; interface interaction;
D O I：
10.1117/12.545280
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
A heterojunction between two 3-dimensional photonic crystals has been realized by interfacing two opal films of different lattice constants. The interface-related transmission minimum has been observed in the frequency range between two directional lowest-order bandgaps of the hetero-opal constituents. The interface transmission minimum has been modelled numerically and tentatively explained by formation of the standing wave across the photonic hetero-crystal due to matching of group velocities of optical modes in both parts at this frequency.
引用
收藏
页码：44 / 53
页数：10
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