Plasmon mode imaging of single gold nanorods
Plasmon mode imaging of single gold nanorods
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DOI：
10.1021/ja047836c
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发表时间：
2004-10-13
影响因子：
15
通讯作者：
Okamoto, H
中科院分区：
文献类型：
--
作者：
Imura, K;Nagahara, T;Okamoto, H
利用有孔扫描近场光学显微镜研究了单根金纳米棒的双光子诱导光致发光图像和光谱。观察到的单个金纳米棒的PL光谱可以通过X和L对称点附近的电子-空穴对的辐射复合来解释。PL图像揭示了反映特定等离子体激元模式的本征函数以及纳米棒周围的电场分布的特征。
We have investigated two-photon-induced photoluminescence images and spectra of single gold nanorods by using an apertured scanning near-field optical microscope. The observed PL spectrum of single gold nanorod can be explained by the radiative recombination of the electron−hole pair near the X and L symmetry points. PL images reveal characteristic features reflecting an eigenfunction of a specific plasmon mode as well as electric field distributions around the nanorod.