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arXiv · 1307.6317

Controlling Intensity and Phase of Terahertz Radiation with an Optically Thin Liquid Crystal-Loaded Metamaterial

O. Buchnev·J. Wallauer·M. Walther·M. Kaczmarek·N. I. Zheludev·V. A. Fedotov
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Abstract

We experimentally demonstrate intensity and phase modulation of terahertz radiation using actively controlled large-area planar metamaterial (metafilm) hybridized with a 12 um thick layer of a liquid crystal. Active control was introduced through in-plane electrical switching of the liquid crystal, which enabled us to achieve a reversible single-pass absolute transmission change of 20 % and a phase change of 40 deg at only 20 V.

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O. Buchnev, J. Wallauer, M. Walther, M. Kaczmarek, N. I. Zheludev, V. A. Fedotov. 2013-07-24. Controlling Intensity and Phase of Terahertz Radiation with an Optically Thin Liquid Crystal-Loaded Metamaterial. https://doi.org/10.1063/1.4823822

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