2022
DOI: 10.1109/jphot.2022.3190833
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Highly Birefringent Terahertz Metasurfaces Based on a Liquid-Crystal-Embedded Metal Mesh

Abstract: Here, we report a metasurface for polarization converters in the terahertz (THz) spectral range. The THz metasurface consists of a metal mesh with subwavelength isotropic apertures and a nematic liquid crystal (LC) that is a uniaxially anisotropic dielectric medium. The LC is embedded and aligned homogeneously in the apertures. We calculated the complex transmittance and complex reflectance of the LC-embedded metal mesh (LC metasurface) for the eigen-polarization states using the finite-difference time-domain … Show more

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