Zapata-Rodríguez Carlos J, Miret Juan J, Vuković Slobodan, Belić Milivoj R
Department of Optics, University of Valencia, Dr. Moliner 50, 46100 Burjassot, Spain.
Opt Express. 2013 Aug 12;21(16):19113-27. doi: 10.1364/OE.21.019113.
We analyzed surface-wave propagation that takes place at the boundary between a semi-infinite dielectric and a multilayered metamaterial, the latter with indefinite permittivity and cut normally to the layers. Known hyperbolization of the dispersion curve is discussed within distinct spectral regimes, including the role of the surrounding material. Hybridization of surface waves enable tighter confinement near the interface in comparison with pure-TM surface-plasmon polaritons. We demonstrate that the effective-medium approach deviates severely in practical implementations. By using the finite-element method, we predict the existence of long-range oblique surface waves.
我们分析了在半无限电介质与多层超材料边界处发生的表面波传播，后者具有不确定的介电常数且垂直于各层切割。在不同的光谱区域内讨论了已知的色散曲线双曲线化，包括周围材料的作用。与纯横磁（TM）表面等离激元极化激元相比，表面波的杂化使得在界面附近能够实现更紧密的限制。我们证明了有效介质方法在实际应用中会出现严重偏差。通过使用有限元方法，我们预测了长程斜表面波的存在。
