Femtosecond light scattering spectroscopy of single gold nanoparticles
Femtosecond light scattering spectroscopy of single gold nanoparticles
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DOI：
10.1063/1.1402962
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发表时间：
2001-09-10
影响因子：
4
通讯作者：
Masuhara, H
中科院分区：
文献类型：
--
作者：
Itoh, T;Asahi, T;Masuhara, H
我们已经开发出一种超快，光散射光谱系统相结合的传统显微镜与泵浦探测设置。我们成功地测量了单个金颗粒的表面等离子体共振带，平均半径为40 nm。泵浦-探测实验结果表明，单个金粒子中存在电子-声子耦合过程和声子-声子耦合过程，其寿命分别为4ps和> 25 ps。(C)2001年美国物理学会。
We have developed an ultrafast, light-scattering spectroscopic system combining a conventional microscope with a pump-probe setup. We successfully measured the surface plasmon resonance band for the individual gold particles with a mean radius of 40 nm. The results on the pump-probe experiment demonstrate that both the electron-phonon and the phonon-phonon coupling processes in the individual gold particles take place with the lifetimes of 4 ps and > 25 ps, respectively. (C) 2001 American Institute of Physics.