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Wideband Y-splitter and aperture-assisted coupler based on sub-diffraction confined plasmonic slot waveguides
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10.1063/1.3374454
/content/aip/journal/apl/96/13/10.1063/1.3374454
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/13/10.1063/1.3374454
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Top-view schematic of the plasmonic Y-splitter; (b) cross section of the plasmonic slot waveguide; (c) simulated power transmission spectra at the output waveguides of the Y-splitter (dashed grey curve is the upper output; red curve is the lower output). The inset shows the simulated field distribution in the horizontal central plane of the Y-splitter at the wavelength.

Image of FIG. 2.
FIG. 2.

(a) SEM image showing the fabricated Y-splitter structure with input and output ports coupled to Si waveguides via taper-funnel couplers; (b) measured transmitted power at the output waveguides of the Y-splitter.

Image of FIG. 3.
FIG. 3.

(a) Schematic of the aperture-assisted plasmonic coupler; (b) dependence of the normalized coupled powers on the aperture width of a coupler with at 1550 nm obtained from 3D FDTD simulations; (c) SEM images of the fabricated plasmonic coupler, inset is an enlarged figure showing the rounded corner edges and slightly angled sidewalls; (d) measured output powers at ports 2 (transmission), 3 (backward), and 4 (forward) of the fabricated coupler.

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/content/aip/journal/apl/96/13/10.1063/1.3374454
2010-03-30
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Wideband Y-splitter and aperture-assisted coupler based on sub-diffraction confined plasmonic slot waveguides
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/13/10.1063/1.3374454
10.1063/1.3374454
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