New scheme of the Discrete Sources Method for investigation of a near field enhancement by coupled particles
New scheme of the Discrete Sources Method for investigation of a near field enhancement by coupled particles
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用于研究耦合粒子近场增强的离散源方法的新方案
DOI：
10.1016/j.cpc.2012.03.019
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
T. Wriedt
中科院分区：
文献类型：
--
作者：
E. Eremina;Y. Eremin;N. Grishina;T. Wriedt
本文对离散源法的数值格式进行了改进，以研究两个耦合贵金属粒子偏振光散射的近场问题。新方案能够计算出几个数量级的近场增强，精度较高。利用所建立的计算机模型研究了两个长形球体的等离子体共振。研究了耦合粒子间电场强度和散射截面随粒子距离和粒子长径比的变化规律。
Numerical scheme of the Discrete Sources Method has been modified to examine near fields for the polarized light scattering by two coupled noble metal particles. The new scheme enables to compute a near field enhancement of several orders with high accuracy degree. The developed computer model has been employed to investigate plasmonic resonance of two prolate spheroids. Both the electric field intensity between coupled particles and the Scattering Cross-Section have been examined versus particle distance and particles aspect ratio.