标题： 表面等离子体极化波在非局部超材料界面的维持 显示英文标题

标题： Surface Plasmon Polaritons Sustained at the Interface of a Nonlocal Metamaterial

摘要： 研究具有特定本构关系的超材料中持续存在的基本物理效应是一个有着悠久传统的研究课题。 除了学术好奇心之外，它的重要性来源于预测可观测现象的能力，如果在实际的超材料中发现这些现象，将明确指示其特性。 在这里，我们考虑一种非局部（强空间色散）、有损耗且各向同性的超材料，并研究非局部性对真空与这种超材料界面处表面等离子体极化子色散关系的影响。 为此，计算了菲涅尔系数，并提出了适当的表面等离子体极化子存在条件。 对实验上可观察到的受挫内部反射几何中的反射进行了预测。 观察到TE和TM偏振的不同行为。 我们的工作为在当今的超材料实验中寻找非局部性的痕迹提供了新的机会。 显示英文摘要

摘要： Studying basic physical effects sustained in metamaterials characterized by specific constitutive relation is a research topic with a long standing tradition. Besides intellectual curiosity, it derives its importance from the ability to predict observable phenomena that are, if found with an actual metamaterial, a clear indication on its properties. Here, we consider a nonlocal (strong spatial dispersion), lossy, and isotropic metamaterial and study the impact of the nonlocality on the dispersion relation of surface plasmon polaritons sustained at an interface between vacuum and such metamaterial. For that, Fresnel coefficients are calculated and appropriate surface plasmon polaritons existence conditions are being proposed. Predictions regarding the experimentally observable reflection from a frustrated internal reflection geometry are being made. A different behavior for TE and TM polarization is observed. Our work unlocks novel opportunities to seek for traces of the nonlocality in experiments made with nowadays metamaterials.