Spaser Action, Loss Compensation, and Stability in Plasmonic Systems with Gain

被引：119

作者：

Stockman, Mark I. ^{[1
]}

机构：

[1] Georgia State Univ, Dept Phys & Astron, Atlanta, GA 30303 USA

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.106.156802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate that the conditions of spaser generation and the full loss compensation in a dense resonant plasmonic-gain medium (metamaterial) are identical. Consequently, attempting the full compensation or overcompensation of losses by gain will lead to instability and a transition to a spaser state. This will limit (clamp) the inversion and lead to the limitation on the maximum loss compensation achievable. The criterion of the loss overcompensation, leading to the instability and spasing, is given in an analytical and universal (independent from system's geometry) form.

引用

页数：4

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