Gain assisted propagation of surface plasmon polaritons on planar metallic waveguides

被引：302

作者：

Nezhad, MP ^{[1
]}

Tetz, K ^{[1
]}

Fainman, Y ^{[1
]}

机构：

[1] Univ Calif San Diego, ECE Dept, La Jolla, CA 92093 USA

来源：

OPTICS EXPRESS | 2004年 / 12卷 / 17期

关键词：

D O I：

10.1364/OPEX.12.004072

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The propagation of surface plasmon polaritons on metallic waveguides adjacent to a gain medium is considered. It is shown that the presence of the gain medium can compensate for the absorption losses in the metal. The conditions for existence of a surface plasmon polariton and its lossless propagation and wavefront behavior are derived analytically for a single infinite metal-gain boundary. In addition, the cases of thin slab and stripe geometries are also investigated using finite element simulations. The effect of a finite gain layer and its distance from the SPP waveguide is also investigated. The calculated gain requirements suggest that lossless gain-assisted surface plasmon polariton propagation can be achieved in practice for infrared wavelengths. (C) 2004 Optical Society of America.

引用

页码：4072 / 4079

页数：8

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