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Proceedings Paper

Optical properties of split ring resonator metamaterial structures on semiconductor substrates
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Paper Abstract

Metamaterials based on single-layer metallic Split Ring Resonators (SRR) and Wires have been demonstrated to have a resonant response in the near infra-red wavelength range. The use of semiconductor substrates gives the potential for control of the resonant properties of split-ring resonator (SRR) structures by means of active changes in the carrier concentration obtained using either electrical injection or photo-excitation. We examine the influence of extended wires that are either parallel or perpendicular to the gap of the SRRs and report on an equivalent circuit model that provides an accurate method of determining the polarisation dependent resonant response for incident light perpendicular to the surface. Good agreement is obtained for the substantial shift observed in the position of the resonances when the planar metalisation is changed from gold to aluminium.

Paper Details

Date Published: 6 May 2008
PDF: 8 pages
Proc. SPIE 6987, Metamaterials III, 69871F (6 May 2008); doi: 10.1117/12.786356
Show Author Affiliations
Nigel P. Johnson, Univ. of Glasgow (United Kingdom)
Basudev Lahiri, Univ. of Glasgow (United Kingdom)
Ali Z. Khokhar, Univ. of Glasgow (United Kingdom)
Richard M. De La Rue, Univ. of Glasgow (United Kingdom)
Scott McMeekin, Glasgow Caledonian Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 6987:
Metamaterials III
Nigel P. Johnson; Ekmel Özbay; Nikolay I. Zheludev; Richard W. Ziolkowski, Editor(s)

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