Tailoring the ultrafast dephasing of quasiparticles in metallic photonic crystals

被引：89

作者：

Zentgraf, T ^{[1
]}

Christ, A

Kuhl, J

Giessen, H

机构：

[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

[2] Univ Bonn, Inst Appl Phys, D-53115 Bonn, Germany

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.93.243901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The ultrafast dephasing of waveguide-plasmon polaritons in metallic photonic crystal slabs is investigated in the femtosecond regime by second-order nonlinear autocorrelation. We find a drastic modification of the dephasing rates due to interaction between localized particle plasmons and optical waveguide modes and subsequent modification of the photonic density of states. In the strong coupling regime our measurements give clear evidence for the appearance of ultrafast polaritonic beat phenomena. All experimental results agree well with theoretical simulations based on a coupled damped harmonic oscillator model.

引用

页数：4

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