Dynamical control of terahertz metamaterial resonance response using bimaterial cantilevers

In this work, we report a novel method for the dynamical control of the resonant electrical response of terahertz (THz) metamaterials. Our approach is based on planar arrays of split-ring resonators (SRRs) coupled with microfabrication methods to create a bimaterial- cantilever-based THz metamaterial switch. Our device exhibits a tunable resonant response centered at 0.75 THz and operates by modifying or shorting the SRR capacitive gap with the bi- material cantilevers. These results demonstrate the potential of bimaterial-cantilever-based MMs for creating THz devices including, as examples, switches, dynamic filters, and phase shifters. Copyright © (2008) by the Electromagnetics Academy.