ULTRAFAST NONEQUILIBRIUM STRESS GENERATION IN GOLD AND SILVER

被引：217
作者：
WRIGHT, OB [1 ]
机构：
[1] NIPPON STEEL CORP LTD,ELECTR RES LABS,SAGAMIHARA,KANAGAWA 229,JAPAN
来源：
PHYSICAL REVIEW B | 1994年 / 49卷 / 14期
关键词：
D O I：
10.1103/PhysRevB.49.9985
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The dynamics of coherent phonon generation by femtosecond optical pulses in thin gold and silver films is studied using a pump and probe scheme. Detection is achieved by monitoring ultrafast surface vibrations in real time using laser-beam deflection. The phonon strain pulse shapes can be explained through the nonequilibrium coupling of the electron and phonon distributions, suggesting a new method for measuring the electron-phonon coupling constant.
引用
收藏
页码：9985 / 9988
页数：4
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