Dynamic terahertz beamforming based on magnetically switchable hyperbolic materials
William O F Carvalho,
E Moncada-Villa,
J R Mejía-Salazar
et al.
Abstract:In this work, we introduce a concept to enable dynamic beamforming of terahertz (THz) wavefronts using applied magnetic fields (B). The proposed system exploits the magnetically switchable hyperbolic dispersion of the InSb semiconductor. This phenomenology, combined with diffractive surfaces and magnetic tilting of scattered fields, allows the design of a metasurface that works with either circularly or linearly polarized wavefronts. In particular, we demonstrate numerically that the transmitted beam tilting c… Show more
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