Hybrid plasmonic waveguide for low-loss lightwave guiding

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A hybrid plasmonic waveguide structure is proposed and fabricated for low-loss lightwave guiding along a metal stripe core. By embedding Au stripe in dual slab waveguides with high refractive-index contrast, the field of the guided mode is confined more in the two dielectric core layers. Thus, the propagation loss is significantly reduced. The guided mode is like a combination of a fundamental long-range surface plasmon polariton strip mode and a dual symmetric dielectric slab mode. We fabricate 5 nm-thick Au stripe optical waveguides and measure the optical properties at a wavelength of 1.31 mu m. The propagation loss is less than 1.0 dB/cm with the metal stripe width of 1-5 mu m. (C) 2010 Optical Society of America
Publisher
OPTICAL SOC AMER
Issue Date
2010-02
Language
English
Article Type
Article
Keywords

METAL-FILMS

Citation

OPTICS EXPRESS, v.18, no.3, pp.2808 - 2813

ISSN
1094-4087
DOI
10.1364/OE.18.002808
URI
http://hdl.handle.net/10203/96884
Appears in Collection
EE-Journal Papers(저널논문)
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