Applied electric field to fabricate colloidal crystals with the photonic band-gap in communication waveband |
| |
Authors: | Yan Hai-Tao Wang Ming Ge Yi-Xian and Yu Ping |
| |
Institution: | Jiangsu Key Lab on Opto-Electronic Technology, School of
Physical Science and Technology, Nanjing Normal University,
Nanjing 210097, China |
| |
Abstract: | The macropore silica colloidal crystal templates were assembled
orderly in a capillary glass tube by an applied electric field
method to control silica deposition. In order to achieve the
photonic band gap (PBG) of colloidal crystal in optical
communication waveband, the diameter of silica microspheres is
selected by Bragg diffraction formula. An experiment was designed to
test the bandgap of the silica crystal templates. This paper
discusses the formation process and the close-packed fashion of the
silica colloidal crystal templates was discussed. The surface
morphology of the templates was also analyzed. The results showed
that the close-packed fashion of silica array templates was
face-centered cubic (FCC) structure. The agreement is very good between the
experimental data and the theoretical calculation. |
| |
Keywords: | colloidal crystal photonic
bandgap materials optical communications fiber |
本文献已被 维普 等数据库收录! |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
| 点击此处可从《中国物理 B》下载免费的PDF全文 |