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Controlling split-ring resonators with light

Kapitanova, P. V. ; Maslovski , S. ; Shadrivov, I. V. ; Voroshilov, M. ; Belov, P. A. ; S., Yu. S.

Applied Physics Letters Vol. 99, Nº 251914, pp. 1 - 3, December, 2011.

ISSN (print): 1077-3118
ISSN (online): 0003-6951

Journal Impact Factor: 3,726 (in 2008)

Digital Object Identifier: 10.1063/1.3671617

Abstract
We propose an original approach for creating tunable electromagnetic metamaterials. We demonstrate experimentally that magnetic resonance of a split-ring resonator (“meta-atom” of a composite material) with a photodiode operated in photovoltaic mode can be tuned by changing the intensity of an external light source. Moreover, for two coupled resonators, we show that we can achieve light-induced switching between dark- and bright-mode responses.