Effective symmetric and antisymmetric eigenmodes of coupled plasmonic resonances play a crucial role in many photonic metamaterials. Recently, we discussed a particular arrangement of metallic split-ring resonators that is planar, hence enabling direct experimental access to the different eigenmodes via near-field optical microscopy. In this Letter, corresponding optical experiments are presented and compared with simple theoretical modeling, providing a direct confirmation of our previous, more indirect conclusions.
© 2010 Optical Society of America
Original Manuscript: July 6, 2010
Manuscript Accepted: September 16, 2010
Published: October 27, 2010
Vol. 6, Iss. 1 Virtual Journal for Biomedical Optics
Daniela Diessel, Manuel Decker, Stefan Linden, and Martin Wegener, "Near-field optical experiments on low-symmetry split-ring-resonator arrays," Opt. Lett. 35, 3661-3663 (2010)