Polarization rotation by an rf-SQUID metasurface

J.-G. Caputo; I. Gabitov; A. I. Maimistov

doi:10.1103/PhysRevB.91.115430

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Polarization rotation by an rf-SQUID metasurface

J.-G. Caputo, I. Gabitov, A. I. Maimistov

DOI 10.1103/PhysRevB.91.115430 · Physical Review B

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Abstract

We study the transmission and reflection of a plane electromagnetic wave through a two-dimensional array of rf-SQUIDs. The basic equations describing the amplitudes of the magnetic field and current in the split-ring resonators are developed. These yield in the linear approximation the reflection and transmission coefficients. The polarization of the reflected wave is independent of the frequency of the incident wave and of its polarization; it is defined only by the orientation of the split ring. The reflection and transmission coefficients have a strong resonance that is determined by the parameters of the rf-SQUID; its strength depends essentially on the incident angle.