Femtosecond light transmission and subradiant damping in plasmonic crystals

被引：219

作者：

Ropers, C ^{[1
]}

Park, DJ

Stibenz, G

Steinmeyer, G

Kim, J

Kim, DS

Lienau, C

机构：

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

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

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

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.94.113901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first observation of subradiance in plasmonic nanocrystals. Amplitude- and phase-resolved ultrafast transmission experiments directly reveal the coherent coupling between surface plasmon polaritons (SPPs) induced by periodic variations in the dielectric function. This interaction results in the formation of plasmonic band gaps and coupled SPP eigenmodes with different symmetries, as directly shown by near-field imaging. In antisymmetric modes, radiative SPP damping is strongly suppressed, increasing the SPP lifetime from 30 fs to more than 200 fs. The findings are analyzed within a coupled resonance model.

引用

页数：4

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