Surface plasmon dynamics in silver nanoparticles studied by femtosecond time-resolved photoemission

被引：189

作者：

Lehmann, J ^{[1
]}

Merschdorf, M ^{[1
]}

Pfeiffer, W ^{[1
]}

Thon, A ^{[1
]}

Voll, S ^{[1
]}

Gerber, G ^{[1
]}

机构：

[1] Univ Wurzburg, Inst Phys, D-97074 Wurzburg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.85.2921

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Multiphoton photoelectron spectroscopy reveals the multiple excitation of the surface plasmon in silver nanoparticles on graphite. Resonant excitation of the surface plasmon with 400 nm femtosecond radiation allows one to distinguish between photoemission from the nanoparticles and the substrate. Two different previously unobserved decay channels of the collective excitation have been identified, namely, decay into one or several single-particle excitations.

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收藏

页码：2921 / 2924

页数：4

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