Structure and transmission spectra for colloidal crystals with silica spheres

被引：11

作者：

Mei, DB ^{[1
]}

Dong, P

Li, HQ

Cheng, BY

Zhang, DZ

机构：

[1] Chinese Acad Sci, Inst Phys, Opt Phys Lab, Beijing 100080, Peoples R China

[2] Chinese Acad Sci, Ctr Condensed Matter Phys, Beijing 100080, Peoples R China

[3] Univ Petr, Natl Heavy Oil Res Lab, Beijing 102200, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 1998年 / 15卷 / 01期

关键词：

D O I：

10.1088/0256-307X/15/1/009

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

An ordered colloidal structure of SiO2 spheres of 0.33 mu m diameter has been formed in distilled water. It is a face-centered cubic structure with a lattice constant of 0.54 mu m and a volume fi action of 0.48, as determined by the Kossel rings analysis. The light transmission in the [111] direction exhibited a dip located at 11600 cm(-1). A plane wave expansion method is used to calculate the lowest gap at the L point. The gap center coincides quite well with the measured transmission dip.

引用

页码：21 / 23

页数：3

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