James R. Baker-Jarvis, Michael D. Janezic, Derik Love, Thomas Mitchell (Mitch) Wallis, Christopher L. Holloway, Pavel Kabos
In this paper we present a simple experimental procedure for studying the phase velocity behavior of a metafilm with tunable material properties. Using this approach we have studied the phase-velocity behavior of a metamaterial under different conditions. We show that a negative-phase velocity is not a sufficient condition for classifying a material as having negative-index material characteristics.
IEEE Transactions on Magnetics
Group velocity, metamaterial, negative index, phase velocity