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(Color online) (a) Schematic diagram of the bilayered CMM structure and the top view of the wheel patterns on (b) the upper and (c) bottom surfaces. Four S-shaped metallic strips are denoted in sequence as S I, S II, S III, and S IV.
(Color online) (a) The magnitudes and (b) phases of the transmission coefficients in the linear polarized basis as a function of frequency. (c) The magnitudes of transmission coefficients in circular polarized basis as a function of frequency. The transmission spectra of (d) |t ++| and (e) |t −−| as a function of the rotation angle θ. The dashed line represents the resonant frequency f 0.
(Color online) (a)–(d) Four snapshots (time interval Δt = T 0/4) of the surface current distributions on the metallic strips at resonance. The black arrows denote the surface current directions. (e)–(h) The corresponding field distributions of Ez in the horizontal plane at the middle of the substrate. The black arrows denote the rotation direction of the spinning electric dipoles.
(Color online) (a) The magnitudes of the transmission coefficients in the circular polarized basis for the four-layer design. The inset shows the details at resonance. The Roman numerals I, II, III, and IV label the resonant dips. (b) Corresponding distributions of |Ez | in the plane y = 0 for each resonant dip.
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