Experimental verification of complex dispersion relation in lossy photonic crystals

被引：32

作者：

Naito, Teruki ^{[1
]}

Sakai, Osamu ^{[1
]}

Tachibana, Kunihide ^{[1
]}

机构：

[1] Kyoto Univ, Dept Elect Sci & Engn, Nishikyo Ku, Kyoto 6128510, Japan

来源：

APPLIED PHYSICS EXPRESS | 2008年 / 1卷 / 06期

关键词：

D O I：

10.1143/APEX.1.066003

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The complex wave number in lossy photonic crystals composed of microplasmas was verified experimentally by measuring the refractive index and the transmittance in a microwave range. These experimental results coincide with the dispersion relation obtained by a modified plan-wave expansion method. In particular, an extraordinary reduction of attenuation was observed in a certain frequency band, which is attributed to a loss term in the dielectric function and periodicity in the structure. These results indicate that a method of dynamic control for electromagnetic waves can be realized using of the dispersion relation in complex space. (C) 2008 The Japan Society of Applied Physics.

引用

页码：0660031 / 0660033

页数：3

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