Modal propagation characteristics of EM waves in ternary one-dimensional plasma photonic crystals

被引：28

作者：

Prasad, S. ^{[1
]}

Singh, Vivek ^{[1
]}

Singh, A. K. ^{[1
]}

机构：

[1] Banaras Hindu Univ, Fac Sci, Dept Phys, Varanasi 221005, Uttar Pradesh, India

来源：

OPTIK | 2010年 / 121卷 / 16期

关键词：

EM waves propagation; Ternary One-dimensional; Plasma photonic crystals; Dispersion characteristics; Photonic band gap; OMNIDIRECTIONAL REFLECTION BANDS; GAP STRUCTURES;

D O I：

10.1016/j.ijleo.2009.02.024

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have theoretically studied the modal dispersion characteristics, group velocity, and effective group as well as phase index of refraction of ternary one-dimensional (ID) plasma photonic band gap (PBG) structure having periodic multilayers of three different materials in one unit cell. The dispersion characteristics related for such structure is derived by solving Maxwell wave equation based on principle of Kronig-Penny model. From the computed results we observe that the dispersion characteristics of such structure also show the frequency gap and cutoffs as found in (binary) one-dimensional plasma photonic crystal. The frequency gap is shown to become larger with the increase of plasma frequency as well as plasma width. It is seen that such structure provide additional degree of freedom to control dispersion characteristic, group velocity and effective index of refraction compared to conventional one-dimensional plasma photonic crystal. (c) 2009 Elsevier GmbH. All rights reserved.

引用

页码：1520 / 1528

页数：9

共 25 条

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