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首页> 外文期刊>Physical Review. B, Condensed Matter >Relativistic electron energy loss and induced radiation emission in two-dimensional metallic photonic crystals. Ⅰ. Formalism and surface plasmon polariton
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Relativistic electron energy loss and induced radiation emission in two-dimensional metallic photonic crystals. Ⅰ. Formalism and surface plasmon polariton

机译：二维金属光子晶体中的相对论电子能量损失和感应辐射发射。 Ⅰ。形式主义与表面等离激元极化

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摘要

A fully relativistic description of the electron energy loss and the induced radiation emission in arbitrary arrays of nonoverlapping metallic cylinders is presented in terms of the multiple scattering method on the basis of vector cylindrical waves. Numerical analysis is given for dilute and dense arrays of Aluminum cylinders with a nanoscale diameter. The results of the electron energy loss spectrum are well correlated with the dispersion relation of coupled surface plasmon polaritons, and can be interpreted with an effective medium approximation when the electron runs inside the arrays. In addition, the cavity modes localized in the grooves between the cylinders can strongly affect the electron energy loss spectrum.
机译：在矢量圆柱波的基础上，采用多重散射方法，对不重叠金属圆柱体的任意阵列中的电子能量损失和感应辐射发射进行了完全相对论的描述。给出了具有纳米级直径的铝缸的稀疏和致密阵列的数值分析。电子能量损失谱的结果与耦合表面等离激元极化子的色散关系密切相关，并且当电子在阵列内部流动时可以用有效的介质近似来解释。另外，位于圆柱体之间的凹槽中的腔模式会强烈影响电子能量损失谱。

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