group velocity;
metamaterial;
negative index;
phase velocity;
PARTICLES;
METAFILM;
D O I:
10.1109/TMAG.2006.878874
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
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 of a metamaterial under differing resonant conditions. We show that possessing negative-phase velocity is not a sufficient condition for classifying a material as having negative-index material characteristics.