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Control of surface plasmon generation efficiency by slit-width tuning
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10.1063/1.2840675
/content/aip/journal/apl/92/5/10.1063/1.2840675
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/5/10.1063/1.2840675
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The experimental setup: the collection mode (c-SNOM) measures the optical signal coupled into the metal coated aperture tip, while the polarization-resolved scattering mode (s-NSOM) measures light scattered off the probe apex into the far field.

Image of FIG. 2.
FIG. 2.

SPP decay length along the axis. (a) dependence of the s-NSOM signal for wide slit. (b) SPP decay length for various slit widths. Dashed line represents the theoretical decay length calculated from SPP dispersion relation.

Image of FIG. 3.
FIG. 3.

Far-field transmittance (black), near-field intensity for excitation with polarization perpendicular to the slit (red), and near-field intensity for excitation with polarization along the slit (blue) as functions of slit width.

Image of FIG. 4.
FIG. 4.

Near-field intensity as a function of slit width, measured by collection mode (filled circle), scattering mode (filled square), and calculated slit-width dependent SPP mode (dashed).

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/content/aip/journal/apl/92/5/10.1063/1.2840675
2008-02-08
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Control of surface plasmon generation efficiency by slit-width tuning
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/5/10.1063/1.2840675
10.1063/1.2840675
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