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Near-to-far-field spectral evolution in a plasmonic crystal: Experimental verification of the equipartition of diffraction orders
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10.1063/1.2951587
/content/aip/journal/apl/93/7/10.1063/1.2951587
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/7/10.1063/1.2951587
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic diagram of the experimental setup. (inset) scanning electron microscope image of the nanoslit array. (b) Far-field transmission spectrum recorded by using a tungsten white light lamp.

Image of FIG. 2.
FIG. 2.

(a) Experimental near-field spatial profile as a function of excitation wavelength. (b) Intensity profile at a tip-sample distance of . (c) . Black solid line denotes slit positions. (d) Distance-dependence of the transmission near the slit center at different excitation wavelengths of (black curve), (red curve), and exponential fitting for case of excitation wavelength . (blue dotted curve). For each case the average intensity over one period is taken.

Image of FIG. 3.
FIG. 3.

(a) Spatially integrated spectrum as a function of tip-sample distance . The black curve denotes the near-field spectrum, red curve gives and the blue curve . (b) Evanescent near field spectrum obtained by subtracted the propagating components. The normalization was chosen so as to minimize the contribution from propagating components. (b) Calculated near-field spectrum together with order (black curve), first order (red curve), second order (green curve), and third order (blue curve) diffraction. The transmittances of the , second, and third orders are magnified by a factor of 10.

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/content/aip/journal/apl/93/7/10.1063/1.2951587
2008-08-20
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Near-to-far-field spectral evolution in a plasmonic crystal: Experimental verification of the equipartition of diffraction orders
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/7/10.1063/1.2951587
10.1063/1.2951587
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