Spatial dispersion in three-dimensional drawn magnetic metamaterials

Authors

Alessandro Tuniz, University of Sydney
Benjamin Pope, University of Sydney
Anna Wang, University of Sydney
Maryanne C. J Large, University of Sydney
Shaghik Atakaramians, University of Sydney
Seong-Sik Min, University of Sydney
Elise M. Pogson, University of WollongongFollow
Roger A. Lewis, University of WollongongFollow
Avi Bendavid, CSIROFollow
Alexander Argyros, University of Sydney
Simon C. Fleming, University of Sydney
Boris T. Kuhlmey, University of Sydney

RIS ID

56290

Publication Details

Tuniz, A., Pope, B., Wang, A., Large, M. C. J., Atakaramians, S., Min, S., Pogson, E. M., Lewis, R. A., Bendavid, A., Argyros, A., Fleming, S. C. & Kuhlmey, B. T. (2012). Spatial dispersion in three-dimensional drawn magnetic metamaterials. Optics Express, 20 (11), 11924-11935.

Abstract

We characterize spatial dispersion in longitudinally invariant drawn metamaterials with a magnetic response at terahertz frequencies, whereby a change in the angle of the incident field produces a shift in the resonant frequency. We present a simple analytical model to predict this shift. We also demonstrate that the spatial dispersion is eliminated by breaking the longitudinal invariance using laser ablation. The experimental results are in agreement with numerical simulations.