Subluminal to superluminal propagation in a left-handed medium

被引：49

作者：

Gupta, SD ^{[1
]}

Arun, R

Agarwal, GS

机构：

[1] Univ Hyderabad, Sch Phys, Hyderabad 500046, Andhra Pradesh, India

[2] Phys Res Lab, Ahmadabad 380009, Gujarat, India

来源：

PHYSICAL REVIEW B | 2004年 / 69卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.69.113104

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper we report large group delays in the propagation of narrow-band pulses through a dispersive medium with both dielectric function and magnetic permeability negative. We show how the numerical results can be understood in terms of the phase time as calculated from the complex transmission amplitude. We also demonstrate superluminal passage and saturation of phase time in the same material albeit in a different spectral region.

引用

页数：4

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