We have studied, both theoretically and experimentally, the excitation of volume modes in a lamellar metal/dielectric metamaterial with hyperbolic dispersion. The highly efficient light penetration through tens of metamaterial layers is consistent with a relatively low propagation loss. The volume modes were found to be highly sensitive to the surface roughness of the layers, which can be a detrimental factor in device applications.

中文翻译：

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层状双曲超材料平板中的低损耗体积模

我们在理论上和实验上都研究了具有双曲分散的层状金属/介电超材料中体积模式的激发。通过数十个超材料层的高效光穿透与相对较低的传播损耗相一致。发现体积模式对层的表面粗糙度高度敏感，这可能是器件应用中的不利因素。