Fiber metamaterials with negative magnetic permeability in the terahertz

Authors

Anna Wang, University of Sydney
Alessandro Tuniz, University of Sydney
Peter Hunt, University of Sydney
Elise Pogson, University of WollongongFollow
R A. Lewis, University of WollongongFollow
Avi Bendavid, Commonwealth Scientific and Industrial Research Organization, Sydney
Simon Fleming, University of Sydney
Boris Kuhlmey, University of Sydney
Maryanne Large, University of Sydney

RIS ID

37887

Publication Details

Wang, A., Tuniz, A., Hunt, P., Pogson, E., Lewis, R. A., Bendavid, A., Fleming, S., Kuhlmey, B. & Large, M. (2011). Fiber metamaterials with negative magnetic permeability in the terahertz. OPTICAL MATERIALS EXPRESS, 1 (1), 115-120.

Abstract

We present a novel method for producing metamaterials with a terahertz magnetic response via fiber drawing, which can be inexpensively scaled up to mass production. We draw a centimeter preform to fiber, spool it, and partially sputter it with metal to produce extended slotted resonators. We characterize metamaterial fiber arrays with different orientations via terahertz time domain spectroscopy, observing distinct magnetic resonances between 0.3 and 0.4 THz, in excellent agreement with simulations. Numerical parameters retrieval techniques confirm that such metamaterials possess negative magnetic permeability. Combined with fiber-based negative permittivity materials, this will enable the development of the first woven negative index materials, as well as the fabrication of magnetic surface plasmon waveguides and subwavelength waveguides.

Grant Number

ARC/DP0984200

Additional Grant Number

http://purl.org/au-research/grants/ARC/DP0984200