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(Color online) (a) (in arbitrary units) as the functions of calculated for a double-ring SRR (symbols) with , , , and and a single-ring SRR (lines) with , , and . Eigenvector component as functions of for the outer ring (, open squares) and the inner ring (, solid stars) for the resonance mode at (b) and at (c).
(Color online) Dipole moments (in arbitrary units) of the double-ring SRR (same as Fig. 1) induced by external plane waves with and directions specified in the legend.
FDTD simulated transmission spectra of double-ring SRR arrays under plane wave inputs with and directions specified in the legend.
(Color online) Amplitudes of (a) electric polarizability and (b) bianisotropic polarizability as functions of , for double-ring SRR’s with , , and different values of specified in the legend.
(Color online) (a) as functions of for two sets of double-ring systems with different values of , calculated by the present theory (solid symbols), FDTD simulations (open symbols), and Eq. (3) (lines). (b) The limiting resonance frequency of a double-ring SRR as functions of , calculated by the complete theory and the analytical formula.
(Color online) SRR resonance frequency (measured in GHz) as a function of (setting , solid line) and (setting , dotted line), calculated by our analytical formula. Symbols are experimental data taken from Figs. 7 and 8 of Ref. 13.
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