Photonic crystal made by close packing SiO2 submicron spheres

被引:91
作者
Lopez, C
Vazquez, L
Meseguer, F
Mayoral, R
Ocana, M
Miguez, H
机构
[1] CSIC, Inst Ciencia Mat, E-28049 Madrid, Spain
[2] Univ Politecn Valencia, CSIC, Inst Tecnol Quim, E-46022 Valencia, Spain
关键词
D O I
10.1006/spmi.1996.0313
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Three-dimensional solid superstructures built with submicrometric SiO2 spheres ordered in a close packed arrangement are shown to behave as photonic crystals. Spheres are synthesised following the Stober-Fink-Bohn method. A close packed structure with a perfect short-range order (tens of microns) is then obtained by sedimentation, on suitable substrates. Specular reflectance of visible light is found to follow Bragg's law which indicates that these structures behave as photonic crystals. This work shows that the ordering of microparticles can be a method to build photonic bandgap materials. (C) 1997 Academic Press Limited.
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页码:399 / 404
页数:6
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