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Opt Express. 2010 Sep 13;18(19):20222-8. doi: 10.1364/OE.18.020222.

Enhanced transmission of electromagnetic waves through 1D plasmonic crystals.

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1
Center for THz-Bio Application Systems, Department of Physics and Astronomy, Seoul National University, Seoul, Korea.

Abstract

Transmission of electromagnetic waves through thick perfect conducting slabs perforated by one-dimensional arrays of rectangular holes was studied experimentally in the microwave frequency range. The observed thickness-dependent transmission clearly exhibits the evanescent and propagating nature of the involved electromagnetic excitations on the considered structures, which are effective surface plasmons and localized waveguide resonances, respectively. The 1D crystals showing transmission based on localized resonances further manifests the frequency-dependent effective refractive index depending on the filling ratio of the holes and accompanies resonant guided wave propagation.

PMID:
20940913
[Indexed for MEDLINE]
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