Localized defect modes in finite magnetic two-dimensional photonic crystals

被引：2

作者：

Shojaei, I. Abbasian ^{[1
]}

Vala, A. Soltani ^{[1
,2
]}

Shojaei, S. ^{[2
]}

Kalafi, M. ^{[1
,2
]}

机构：

[1] Univ Tabriz, Dept Solid State Phys, Fac Phys, Tabriz, Iran

[2] Univ Tabriz, Res Inst Appl Phys & Astron RIAPA, Div Elect, Photon Grp, Tabriz 51665163, Iran

来源：

EUROPEAN PHYSICAL JOURNAL B | 2011年 / 81卷 / 01期

关键词：

Dielectric photonic crystals - Ferrite materials - Localized defects - Magnetic photonic crystals - Negative permeability - Negative regions - Scattering matrix method - Two-dimensional photonic crystals;

D O I：

10.1140/epjb/e2011-20122-2

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We present a detailed study of localized defect modes in finite two-dimensional magnetic photonic crystal consisting of cylindrical ferrite material in air background by using the scattering matrix method. It is shown that due to having positive and negative value of the effective magnetic permeability in interested photonic band gap, the defect modes present different behavior. Our results show that the modes appeared in positive permeability region have features similar to the modes supported by the dielectric photonic crystal while those created in the negative permeability region are strongly localized at the interface of defect ferrite rod with air background. Moreover, results indicate that defect modes occurred in the negative region are sharper than those appeared in the positive one which means the quality factor of former case is extremely high.

引用

页码：63 / 68

页数：6

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