Analysis of the scattering properties of 3D non-spherical plasmonic nanoparticles accounting for non-local effects

Analysis of the scattering properties of 3D non-spherical plasmonic nanoparticles accounting for non-local effects
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考虑非局部效应的 3D 非球形等离子体纳米颗粒的散射特性分析

DOI:
10.1080/09500340.2018.1459911
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发表时间:
2018
影响因子:
1.3
通讯作者:
W. Hergert
W. Hergert
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
Eremin;T. Wriedt;W. Hergert

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基于离散源方法(DSM)的扩展,我们新开发的计算机模型使我们能够分析偏振光散射的3D非球形粒子占非局部效应(NLE)的等离子体纳米粒子。利用这一理论,对不同形状的球形颗粒进行了计算机模拟。分析了考虑流体力学Drude模型和广义非局域光学响应的非线性方程对光谱散射特性的影响。已经发现,粒子形状和入射辐射的偏振对等离子体粒子的散射性质有很强的影响。此外,已经证明,非球形3D颗粒的NLE导致相应的局部表面等离子体共振的强度降低,并为非球形颗粒提供等离子体共振的蓝移。
Based on an extension of the discrete sources method (DSM) our newly developed computer model enables us to analyze polarised light scattering by 3D non-spherical particles accounting for non-local effects (NLE) for plasmonic nanoparticles. Using this theory, computer simulations for spheroid particles of different shape have been conducted. The influence of the NLE both considering the Hydrodynamical Drude model and the generalised non-local optical response on the spectral scattering properties has been analyzed. It has been found that there is a strong influence of particle shape and polarisation of the incident radiation on the scattering properties of a plasmonic particle. Additionally, it has been demonstrated that NLE for non-spherical 3D particles leads to a decrease in intensity of the corresponding localised surface plasmon resonance and provides a blue shift of the plasmon resonance for the non-spherical particles.
DOI: --
发表时间: 2012
期刊:
影响因子: --
作者:
Y. Eremin;E. Eremina;N. Grishina;T. Wriedt
通讯作者: T. Wriedt
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DOI: 10.1007/978-3-319-45820-5_12
发表时间: 2017
期刊: Physical Review B
影响因子: 3.7
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通讯作者: N. Mortensen
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期刊: Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
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