Abstract

The interaction of electromagnetic waves with a spherical metallic nanoparticle is studied in this work. Within the model of an infinite spherical potential well, taking into account the size dependence of the Fermi energy, a formula for the dielectric tensor is obtained and its diagonal components are calculated. The calculation results demonstrate a strong size and frequency dependencies of the real and imaginary parts of the dielectric function. Calculations were performed for Ag, Cu, and Al particles.

中文翻译：

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球形金属纳米粒子的介电功能

摘要

在这项工作中研究了电磁波与球形金属纳米粒子的相互作用。在无限大的球形势阱的模型中，考虑到费米能量的大小依赖性，获得了介电张量的公式并计算了其对角分量。计算结果表明，介电函数的实部和虚部具有很强的大小和频率依赖性。对Ag，Cu和Al颗粒进行了计算。