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Abstracts
A compact and wideband plasmonic directional coupler is proposed based on a hybrid metal-insulator slab waveguide (HMISW). A transfer matrix method (TMM) is adopted to analyze the multilayer structure. The hybrid waveguide is composed of a metallic layer of silver and two dielectric layers of silica (SiO2) and silicon (Si) with high index contrast. Coupling length and maximum transferred power are optimized according to dielectric layer thicknesses. It is shown that submicron coupling length is achieved with a wide bandwidth and high efficiency, being advantageous to conventional directional couplers.
Keywords
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Year
Volume
Issue
Pages
108-110
Physical description
Dates
published
30 - 9 - 2014
accepted
08 - 9 - 2014
received
20 - 6 - 2014
Contributors
author
author
References
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Document Type
article
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.psjd-2080-2242-2014-6-3-518-1986-1-PB