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Oblique incidence reflectometry and spectroscopic ellipsometry of split-ring resonators in infrared

J. Nanophoton. 5, 051815 (Jul 01, 2011); http://dx.doi.org/10.1117/1.3601359

Milka Jakovljević, Borislav Vasić, Goran Isić, and Radoš Gajić

University of Belgrade, Institute of Physics, Pregrevica 118, Belgrade, Serbia milka@ipb.ac.rs

University of Leeds, School of Electronic and Electrical Engineering, LST 9JT, United Kingdom

Tom Oates and Karsten Hinrichs

Leibniz Institut für Analytische Wissenschaften - ISAS - e.V., Albert-Einstein-Str. 9, 12489 Berlin, Germany

Iris Bergmair

PROFACTOR GmbH, Functional Surfaces and Nanostructures, Im Stadgut A2, 4407 Steyr-Gleink, Austria

Kurt Hingerl

Universität Linz, Zentrum für Oberflächen- und Nanoanalytik, Altenbergerstr. 69, A-4040, Linz, Austria

Ellipsometry and infrared polarized reflection spectroscopy at oblique incidence of golden split-ring resonators were simulated and discussed. The ellipsometric spectra were related to the reflection spectra for the two polarization of the incident wave, s- and p-, with electric field being normal and parallel to the plane of incidence, respectively. Near-field and bulk current distribution at the resonances proved that they correspond to the multiple plasmonic modes of the split-ring resonators. The calculated magnetic moment showed that at oblique incidence both magnetic and electric field induce the magnetic resonances.

© 2011 Society of Photo-Optical Instrumentation Engineers (SPIE)

History
Received Feb 02, 2011
Accepted May 27, 2011
Revised May 25, 2011
Published online Jul 01, 2011
Citation
Milka Jakovljević, Borislav Vasić, Goran Isić, Radoš Gajić, Tom Oates, Karsten Hinrichs, Iris Bergmair and Kurt Hingerl, "Oblique incidence reflectometry and spectroscopic ellipsometry of split-ring resonators in infrared", J. Nanophoton. 5, 051815 (Jul 01, 2011); http://dx.doi.org/10.1117/1.3601359

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