title: Long-range dielectric-loaded surface plasmon polariton waveguides operating at telecommunication wavelengths.
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.
authors: Institute of Technology and Innovation, University of Southern Denmark, Niels Bohrs Allé 1, DK-5230 Odense M, Denmark. vsv@iti.sdu.dk
authors: Valentyn S
authors: VS
authors: Volkov
authors: Zhanghua
authors: Z
authors: Han
authors: Michael G
authors: MG
authors: Nielsen
authors: Kristjan
authors: K
authors: Leosson
authors: Hamid
authors: H
authors: Keshmiri
authors: Jacek
authors: J
authors: Gosciniak
authors: Ole
authors: O
authors: Albrektsen
authors: Sergey I
authors: SI
authors: Bozhevolnyi