New scheme of the Discrete Sources Method for investigation of a near field enhancement by coupled particles

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• 作者：Elena Eremina^a ; ^{eremina@iwt.uni-bremen.de} ; Yuri Eremin^b ; Natalia Grishina^b ; Thomas Wriedt^c
• 关键词：Discrete Sources Method ; Numerical scheme ; Coupled metallic nanoparticles ; Plasmonic resonance
• 刊名：Computer Physics Communications
• 出版年：2012
• 期刊代码：30_00104655
• 类别：cp
• 出版时间：August, 2012
• 卷：183
• 期：8
• 页码：1753-1759
• 文件大小：637 K

摘要

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.