Dispersion analysis of grounded dielectric slab coated with double positive (DPS) / double negative (DNG) material

被引：0
|
作者：
Bhattacharjee, Somen [1 ]
Anand, Amrit [1 ]
Agrawal, Rounak [1 ]
Chaudhuri, Sumantra [2 ]
机构：
[1] Indian Inst Informat Technol, Ittigatti Rd, Dharwad 580009, Karnataka, India
[2] GITAM Univ, NH27, Bengaluru 561203, Karnataka, India
来源：
PHYSICS LETTERS A | 2025年 / 530卷
关键词：
Surface modes; Dispersion characteristic; Double positive material; Double negative material; TM; TE; INDEX;
D O I：
10.1016/j.physleta.2024.130126
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The present work investigates the dispersion characteristics both for TM and TE modes in a grounded dielectric slab coated with double positive (DPS) material and double negative (DNG) material. The outermost dielectric layer is assumed to be free space. By employing proper boundary conditions at interfaces, dispersion relations for the aforementioned structure for both TM and TE modes are derived. Additionally, surface waves at the interface of free space and DPS/DNG coating are investigated. Existence of mode degeneracy for DNG/DPS combination has been discussed based on dispersion analysis.
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页数：5
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