Tuning of photonic bandgaps by a field-induced structural change of fractal metamaterials

被引：24

作者：

Hou, B ^{[1
]}

Xu, G ^{[1
]}

Wong, HK ^{[1
]}

Wen, WJ ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R China

来源：

OPTICS EXPRESS | 2005年 / 13卷 / 23期

关键词：

D O I：

10.1364/OPEX.13.009149

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Bandgaps of a structure with electrorheological fluids sandwiched between planar metallic fractal electrodes are investigated in the microwave regime. Our results show that bandgaps are tunable as a result of the electrorheological effect induced by the external electric field applied directly to the structure. A finite- difference time- domain simulation reveals that the tunability of bandgaps is not related to the average dielectric constant but is caused by the field- induced structural change in the electrorheological fluids.(c) 2005 Optical Society of America.

引用

页码：9149 / 9154

页数：6

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