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arXiv · 0912.0800

Experimental and numerical studies of terahertz surface waves on a thin metamaterial film

Benjamin Reinhard·Oliver Paul·Rene Beigang·Marco Rahm
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Abstract

We present experimental and numerical studies of localized terahertz surface waves on a subwavelength-thick metamaterial film consisting of in-plane split-ring resonators. A simple and intuitive model is derived that describes the propagation of surface waves as guided modes in a waveguide filled with a Lorentz-like medium. The effective medium model allows to deduce the dispersion relation of the surface waves in excellent agreement with the numerical data obtained from 3-D full-wave calculations. Both the accuracy of the analytical model and the numerical calculations are confirmed by spectroscopic terahertz time domain measurements.

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Benjamin Reinhard, Oliver Paul, Rene Beigang, Marco Rahm. 2009-12-04. Experimental and numerical studies of terahertz surface waves on a thin metamaterial film. https://doi.org/10.1364/ol.35.001320

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