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Abstract
We analysed the response of a tunable liquid crystal metamaterial (MTM) transducer in the terahertz frequency range. The MTM structure is based on the rod double-split square resonators (SSR) with back-to-back orientation. A full-wave analysis technique based on the finite-difference time-domain method (FDTD) was performed using QuickWave 3D electromagnetic solver. Terahertz transmission properties of the MTM structure can be controlled by the director of the liquid crystal layer. The main aim of this work is to determine the impact of the size of the SSR of the MTM transducer on scattering parameters of the analysed MTM transducer at terahertz frequency range. Numerical simulations were performed in the range 0.32–0.44 THz.
Acknowledgements
This paper was produced in 2012 with the financial support of the Polish Ministry of Sciences and Higher Education, No. O R00 0144 12 “Tunable liquid crystal transducers for THz and GHz frequency range.”, and with partial financial support the Polish Ministry of Sciences and Higher Education, Key Project POIG.01.03.01-14-016/08 “New Photonic Materials and their Advanced Applications”.