PROPAGATION OF A LOCALIZED WAVEPACKET IN A METAMATERIAL WITH A NEGATIVE INDEX OF REFRACTION

被引：1
|
作者：
Grigor'ev, V. V. [1 ]
Kabanov, V. V. [1 ]
机构：
[1] Natl Acad Sci, BI Stepanov Phys Inst, Minsk 220072, BELARUS
来源：
JOURNAL OF APPLIED SPECTROSCOPY | 2008年 / 75卷 / 02期
关键词：
negative index of refraction; metamaterial; localized wavepacket; frequency dispersion;
D O I：
10.1007/s10812-008-9030-9
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
Propagation properties of electromagnetic waves in a medium with a negative index of refraction are investigated. A model of a physical signal that combines simultaneously qualities of both a spatially-localized beam and a wavepacket was used as the incident wave. Such a choice was necessary because of the strong frequency dispersion of metamaterials in the spectral region with a negative index of refraction. An approximate analytical solution was derived that describes the propagation dynamics of such a signal through a slab made of material showing simultaneously a negative dielectric permittivity and magnetic permeability.
引用
收藏
页码：192 / 198
页数：7
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