Universal self-amplification channel for surface plasma waves

被引：1

作者：

Deng, Hai-Yao ^{[1
,2
]}

Wakabayashi, Katsunori ^{[1
,3
]}

Lam, Chi-Hang ^{[4
]}

机构：

[1] Kwansei Gakuin Univ, Sch Sci & Technol, Dept Nanotechnol Sustainable Energy, Gakuen 2-1, Sanda 6691337, Japan

[2] Univ Exeter, Dept Phys & Astron, Stoker Rd, Exeter EX4 4QL, Devon, England

[3] NIMS, Namiki 1-1, Tsukuba, Ibaraki 3050044, Japan

[4] Hong Kong Polytech Univ, Dept Appl Phys, Hung Hum, Hong Kong, Peoples R China

来源：

PHYSICAL REVIEW B | 2017年 / 95卷 / 04期

基金：

日本学术振兴会;

关键词：

POLARITON AMPLIFICATION; SUBWAVELENGTH OPTICS;

D O I：

10.1103/PhysRevB.95.045428

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a theory of surface plasma waves (SPWs) in metals with arbitrary electronic collision rate iota-1. We show that there exists a universal intrinsic amplification channel for these waves, subsequent to the interplay between ballistic motions and the metal surface. We evaluate the corresponding amplification rate gamma(0), which turns out to be a sizable fraction of the SPW frequency.s. We also find that the value of omega(s) depends on surface scattering properties, in contrast with the conventional theory.

引用

页数：10

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