Single and multiband THz Metamaterial Polarizers

Abstract

We report single and multiband linear polarizers for terahertz (THz) frequencies using cut-wire metamaterials (MM). The MMs are designed by finite element method, fabricated by electron beam lithography, and characterized by THz time-domain spectroscopy. The MM unit cells consist of single or multiple length cut-wire pads of gold on semi-insulating Gallium Arsenide for single or multiple band polarizers. The dependence of the resonance frequency of the single band polarizer on the length of the cut-wires is explained based a transmission line model.

6 pages, 3 figures

References in corpus (2)

• Terahertz metamaterials for linear polarization conversion and anomalous refraction
• A metamaterial absorber for the terahertz regime: Design, fabrication and characterization