Multipole plasmon resonances in gold nanorods
Multipole plasmon resonances in gold nanorods
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DOI：
10.1021/jp056606x
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发表时间：
2006-02-09
影响因子：
3.3
通讯作者：
Mirkin, CA
中科院分区：
文献类型：
--
作者：
Payne, EK;Shuford, KL;Mirkin, CA
研究了阳极氧化铝模板上电化学沉积的金棒的光学性质。制备平均直径为85 nm，长度为96、186、321、465、495、578、641、735和1175 nm的棒的均匀悬浮液。这些棒状纳米结构的纯度和尺寸使我们能够在胶体悬浮液中首次观察到高阶多极共振。实验光谱同意离散偶极近似计算，已从金纳米棒的尺寸建模。
The optical properties of gold rods electrochemically deposited in anodic aluminum oxide templates have been investigated. Homogeneous suspensions of rods with an average diameter of 85 nm and varying lengths of 96, 186, 321, 465, 495, 578, 641, 735, and 1175 nm were fabricated. The purity and dimensions of these rod nanostructures allowed us to observe higher-order multipole resonances for the first time in a colloidal suspension. The experimental optical spectra agree with discrete dipole approximation calculations that have been modeled from the dimensions of the gold nanorods.