Angular Dependence of Resonances from Rod Pairs and U-Shapes

ORAL

Abstract

We examine and compare the angular dependence of electric and magnetic resonances from rod pairs and U-shapes made of Ag with the long arms placed both horizontally and vertically. We discuss the results in terms of photonic band structure effects. In addition, we observe that the splitting of the higher order mode for vertical U-shapes in the s-polarization behave as symmetric and anti-symmetric modes in which the modes red and blue shift, respectively, as observed previously. However, both horizontal U-shapes and rod pairs also show a split for the p-polarization in which both modes red shift. We discuss the reasons for this behavior using both experimental results and simulations.

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Authors

  • Timothy Corrigan

    University of Maryland

  • P. W. Kolb

    Laboratory for Physical Sciences, Laboratory for Physical Sciences, College Park, MD 20740

  • A.B. Sushkov

    University of Maryland, Department of Physics, University of Maryland, College Park, MD 20742, MRSEC, University of Maryland at College Park

  • Dennis Drew

    University of Maryland, Department of Physics, University of Maryland, College Park, MD 20742, Center for Nanophysics and Advanced Materials, University of Maryland at College Park, University of Maryland at College Park, CNAM, University of Maryland

  • Dominic Britti

    University of Maryland

  • Ray Phaneuf

    University of Maryland, College Park, University of Maryland, Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742