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. 2009 Feb 16;17(4):2968-75.
doi: 10.1364/oe.17.002968.

Dielectric-loaded Plasmonic Waveguide-Ring Resonators

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Dielectric-loaded Plasmonic Waveguide-Ring Resonators

Tobias Holmgaard et al. Opt Express. .

Abstract

Using near-field microscopy, the performance of dielectric-loaded plasmonic waveguide-ring resonators (WRRs) operating at telecom wavelengths is investigated for various waveguide-ring separations. It is demonstrated that compact (footprint approximately 150 microm(2)) and efficient (extinction ratio approximately 13 dB) WRR-based filters can be realized using UV-lithography. The WRR wavelength responses measured and calculated using the effective-index method are found in good agreement.

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