Imaging of surface plasmon and ultrafast dynamics in gold nanorods by near-field microscopy

被引：87
|
作者：
Imura, K
Nagahara, T
Okamoto, H [1 ]
机构：
[1] Inst Mol Sci, Okazaki, Aichi 4448585, Japan
[2] Grad Univ Adv Studies, Okazaki, Aichi 4448585, Japan
来源：
JOURNAL OF PHYSICAL CHEMISTRY B | 2004年 / 108卷 / 42期
关键词：
D O I：
10.1021/jp047950h
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We investigated the near-field optical properties of single gold nanorods. Transmission images observed near the surface plasmon resonances agree qualitatively with the calculated maps of the optical local density of states and are reflected by spatial characteristics of plasmon wave functions. Ultrafast temporal responses have been observed by combining near-field microscopy with a time-resolved technique. It has been found that the behavior of the collective motion of electrons in the center of the rod is different from that in both ends.
引用
收藏
页码：16344 / 16347
页数：4
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