Negative index bulk metamaterial at terahertz frequencies.
We present a bulk metamaterial with negative refractive index in the terahertz frequency range. The structure is composed of pairs of metallic crosses embedded in Benzocyclobutene (BCB). The design is specifically chosen to provide a low-loss, free-standing material which operates under normal incidence and independently of the polarization of the incident radiation. These qualities allow the fabrication of 3D structures by mechanical stacking of multiple thin films.
Paul
Oliver
O
Department of Physics, University of Kaiserslautern, Germany. Oliver.Pa@gmx.de
Imhof
Christian
C
Reinhard
Benjamin
B
Zengerle
Remigius
R
Beigang
René
R
D003198:Computer Simulation; D004560:Electricity; D009716:Numerical Analysis, Computer-Assisted; D055095:Optics and Photonics; D012031:Refractometry