Femtosecond optical second harmonic generation by metal clusters:: The influence of inhomogeneous line broadening on the dephasing time of surface plasmon excitation

被引：30
作者：
Vartanyan, T
Simon, M
Träger, F
机构：
[1] Univ Kassel, Fachbereich Phys, D-34132 Kassel, Germany
[2] SI Vavilov State Opt Inst, St Petersburg 197101, Russia
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 1999年 / 68卷 / 03期
关键词：
D O I：
10.1007/s003400050644
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A theoretical treatment of the influence of inhomogeneous line broadening on autocorrelation traces obtained by femtosecond optical second harmonic generation (SHG) by supported nanoparticles is presented. It is shown that the width of the autocorrelation function is strongly influenced by inhomogeneous broadening, making it difficult, if ndt impossible, to extract reliable values of the plasmon dephasing time from such measurements. Recent experimental results obtained by femtosecond SHG are discussed in the light of the theory developed.
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页码：425 / 431
页数：7
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