LSPR spectral properties of Au nano-ring arrays and single Au nanoparticles
LSPR spectral properties of Au nano-ring arrays and single Au nanoparticles
复制标题
金纳米环阵列和单个金纳米粒子的局域表面等离子体共振光谱特性
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
Fang yu
中科院分区：
文献类型：
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作者：
Ma Junxian;Chen Bibo;Tan Ruihu;Luo Xiangang;Fang yu
In this paper, we simulate Localized Surface Plasmon Resonance(LSPR) absorption of periodic Au nano-ring arrays and single Au nanoparticles using the Finite Difference Time Domain(FDTD) method. We choose input plane waves of different wavelengths and discuss the relation between the absorption peak of the Au array and the variable external dielectric constants. It is found that the sensitivity of these sensors based on LSPR is improved compared to the common sensors and the enhancement is caused by the periodical structure. We also investigate the spectrum characteristic of a single Au nanoparticle and discuss the relation between the absorption peak and the size of the nanoparticle.
