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Conferences > CLEO_AT > 2016 > JW2A > JW2A.20

Liquid Crystal Frequency Tunable Terahertz Metamaterial Absorber

Mohammad P. Hokmabadi, A. Treki, E. Rivera, P. Kung, R. Lindquist, and Seongsin M. Kim

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Abstract

Here, we theoretically and experimentally realize a terahertz (THz) perfect metamaterial absorber with an actively tunable frequency response. The structure is made of a complementary frequency selective surface (CFSS) and a metal backplane where the subwavelength space between them is filled with liquid crystal. By applying a voltage between CFSS and metal backplane a resonance frequency shifts about 4.5 GHz at 0.567 THz is obtained while the absorbance maintains at %90.

© 2016 Optical Society of America

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