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Opt Lett. 2011 Nov 1;36(21):4278-80. doi: 10.1364/OL.36.004278.

Long-range dielectric-loaded surface plasmon polariton waveguides operating at telecommunication wavelengths.

Author information

  • 1Institute of Technology and Innovation, University of Southern Denmark, Niels Bohrs Allé 1, DK-5230 Odense M, Denmark. vsv@iti.sdu.dk

Abstract

We report on the realization of long-range dielectric-loaded surface plasmon polariton waveguides (LR-DLSPPWs) consisting of straight and bent subwavelength dielectric ridges deposited on thin and narrow metal stripes supported by a dielectric buffer layer covering a low-index substrate. Using imaging with a near-field optical microscope and end-fire coupling with a tapered fiber connected to a tunable laser at telecommunication wavelengths (1425-1545 nm), we demonstrate low-loss (propagation length ∼500 μm) and well-confined (mode width ∼1 μm) LR-DLSPPW mode guiding and determine the propagation and bend loss.

PMID:
22048390
[PubMed]
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