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中文摘要：
球形纳米粒子已经被广泛地应用于表面增强拉曼散射.为进一步提高纳米球表面电场,从而提高表面增强拉曼散射信号强度,本文设计了平行隔板纳米球结构.离散偶极子近似计算结果表明,应用平行隔板后,纳米球表面电场得到了大幅度增强,故平行隔板纳米球结构更适合作为表面增强拉曼散射衬底,用于生物分子探测.另外,本文还系统地研究了平行隔板结构参数对整个平行隔板纳米球结构光学性质的影响.
英文摘要：
Nanospheres are widely used as the substrates for surface enhanced Raman scattering（SERS）.In order to further enhance the electric fields around nanospheres and improve the SERS intensity,in this paper,we introduce a novel nanostructure which is composed of a couple of parallel clapboards and a clamped nanosphere.The discrete dipole approximation calculation results indicate that when the parallel clapboards are used,the electric fields around the nanosphere are much enhanced.Therefore,the nanospheres clamped by parallel clapboards may work well as the SERS substrates.In addition,the effects of the structural parameters of parallel clapboards are also investigated.
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