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

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 imagi...

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Bibliographic Details
Published in:Optics letters 2011-11, Vol.36 (21), p.4278-4280
Main Authors: VOLKOV, Valentyn S, ZHANGHUA HAN, NIELSEN, Michael G, LEOSSON, Kristjan, KESHMIRI, Hamid, GOSCINIAK, Jacek, ALBREKTSEN, Ole, BOZHEVOLNYI, Sergey I
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Optical elements, devices, and systems
Optical waveguides and coupleurs
Optics
Physics
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Summary: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.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.36.004278