Photoluminescence from gold nanoplates induced by near-field two-photon absorption

被引：70
|
作者：
Imura, K [1 ]
Nagahara, T
Okamoto, H
机构：
[1] Inst Mol Sci, Okazaki, Aichi 4448585, Japan
[2] Grad Univ Adv Studies, Okazaki, Aichi 4448585, Japan
来源：
APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 02期
基金：
日本学术振兴会;
关键词：
D O I：
10.1063/1.2161568
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have investigated two-photon-induced photoluminescence (PL) properties of single gold nanoplates by using an apertured scanning near-field optical microscope. The nanoplates show PL much stronger than nanorods. The near-field PL images show characteristic spatial features, which depend on the incident polarization. These PL images are in good agreement with the calculated spatial distribution of the electric fields adjacent to the particles at the excitation wavelength. We attribute the observed images to spatial characteristics of plasmon modes.
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页码：1 / 3
页数：3
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