Time-Resolved 2PPE and Time-Resolved PEEM as a Probe of LSP's in Silver Nanoparticles

被引:36
作者
Bayer, D. [1 ]
Wiemann, C. [2 ]
Gaier, O. [1 ]
Bauer, M. [3 ]
Aeschlimann, M. [1 ]
机构
[1] Univ Kaiserslautern, Dept Phys, D-67663 Kaiserslautern, Germany
[2] Forschungszentrum Julich, Inst Festkorperforsch, D-52425 Julich, Germany
[3] Univ Kiel, Inst Expt & Angew Phys, D-24118 Kiel, Germany
关键词
D O I
10.1155/2008/249514
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The time-resolved two-photon photoemission technique (TR-2PPE) has been applied to study static and dynamic properties of localized surface plasmons (LSP) in silver nanoparticles. Laterally, integrated measurements show the difference between LSP excitation and nonresonant single electron-hole pair creation. Studies below the optical diffraction limit were performed with the detection method of time-resolved photoemission electron microscopy (TR-PEEM). This microscopy technique with a resolution down to 40nm enables a systematic study of retardation effects across single nanoparticles. In addition, as will be shown in this paper, it is a highly sensitive sensor for coupling effects between nanoparticles.
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页数:11
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