Figure 2

(a) Schematic of the anisotropic meta-atom illuminated by TE plane wave. (b) Charge and (c) current distribution at the electric and magnetic resonance frequencies, respectively (arrows denote current flow). (d) Calculated εr and εθ values that give matched zero index property (solid: R = 0.4a, dashed: R = 0.45a). (e) εeff and μeff tunability including demonstration of matched index property (neff = ±0.1).