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首页> 外文期刊>Physical review. B, Condensed Matter And Materials Physics >Scattering coefficients of surface plasmon polaritons impinging at oblique incidence onto one-dimensional surface relief defects
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Scattering coefficients of surface plasmon polaritons impinging at oblique incidence onto one-dimensional surface relief defects

机译:倾斜入射到一维表面起伏缺陷上的表面等离激元极化子的散射系数

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摘要

We present a theoretical analysis of surface plasmon polariton (SPP) scattering by shallow one-dimensional surface relief defects for oblique incidence, applying both surface impedance boundary conditions and Ray-leigh expansion. Using this method, nontrivial angular dependences for transmission, reflection, and out-of-plane scattering are obtained. For the case of a defect with rectangular shape, we give an analytical description of the interference phenomena caused by the SPP diffraction for both a single defect (either protrusion or indentation) and a finite array of them.
机译:我们通过表面阻抗边界条件和瑞利展开法,对倾斜入射的浅一维表面起伏缺陷对表面等离振子极化(SPP)散射进行了理论分析。使用此方法,可以获得透射,反射和面外散射的非平凡角度依赖性。对于矩形缺陷,我们对单个缺陷(突起或压痕)及其有限阵列的SPP衍射引起的干涉现象进行了分析描述。

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