Microscopic origin of surface-plasmon radiation in plasmonic band-gap nanostructures

被引：214

作者：

Kim, DS ^{[1
]}

Hohng, SC

Malyarchuk, V

Yoon, YC

Ahn, YH

Yee, KJ

Park, JW

Kim, J

Park, QH

Lienau, C

机构：

[1] Seoul Natl Univ, Sch Phys, Seoul 151742, South Korea

[2] Max Born Inst Nichtlineare Opt & Kurzzeitspektros, D-12489 Berlin, Germany

[3] Korea Res Inst Stand & Sci, Taejon 305600, South Korea

[4] Korea Univ, Dept Phys, Seoul 136701, South Korea

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.91.143901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report spatial domain measurements of the damping of surface-plasmon excitations in metal films with periodic nanohole arrays. The measurements reveal a short coherent propagation length of a few mum inside nanohole arrays, consistent with delays of about 10 fs in ultrafast transmission experiments. This implies that the transmission spectra of the entire plasmonic band-gap structure are homogeneously broadened by radiative damping of surface-plasmon excitations. We show that a Rayleigh-like scattering of surface plasmons by the periodic hole array is the microscopic origin of this damping, allowing the reradiation rate to be controlled.

引用

页数：4

共 16 条

[11] Near-field distribution of optical transmission of periodic subwavelength holes in a metal film [J].