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Multipolar surface plasmon peaks on gold nanotriangles
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10.1063/1.2839273
/content/aip/journal/jcp/128/9/10.1063/1.2839273
http://aip.metastore.ingenta.com/content/aip/journal/jcp/128/9/10.1063/1.2839273
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Scanning electron microscopy image of array A constituted of gold nanotriangles on ITO. The grating constant is , the particle lateral size , and the height .

Image of FIG. 2.
FIG. 2.

(a) Experimental extinction spectra of gold submicrometer triangles. The extinction is calculated from the transmission of the arrays on the substrate with reference to the transmission of the bare substrate as . The spectra correspond to triangle arrays with five different lateral sides. (A) , (B) , (C) , (D) , and (E) . The grating constant is for all the arrays. The spectra are recorded under normal incidence with a polarization along the direction. The inset shows curve A on an enlarged scale. (b) Calculated DDA extinction cross section for triangular gold prisms of thickness and various sides deposited on ITO. (A) , (B) , (C) , (D) , and (E) . The dipole spacing is and the incident polarization is set perpendicularly to one of the triangle edge. The inset displays an enlargement of the extinction cross spectrum for the triangular prism of edge.

Image of FIG. 3.
FIG. 3.

(a) Experimental extinction spectra of arrays F. Lateral edge of , grating constant . The spectra are recorded under normal incidence with a polarization along the direction. (b) Comparison between the experimental (solid line) and calculated DDA absorbance (dashed line) for triangular gold prisms of thickness and side, in the range. The dipole spacing is and the incident polarization is set perpendicularly to one of the triangle edge.

Image of FIG. 4.
FIG. 4.

Experimental LSP resonance wavelengths of the successive multipoles vs the edge length of the gold nanotriangles. First order: ◼; second order: ●; third order: ▴; fourth order: ▾. Full symbols correspond to the experimental data recorded in air, the open ones in oil. The lines show the best linear fit.

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/content/aip/journal/jcp/128/9/10.1063/1.2839273
2008-03-04
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Multipolar surface plasmon peaks on gold nanotriangles
http://aip.metastore.ingenta.com/content/aip/journal/jcp/128/9/10.1063/1.2839273
10.1063/1.2839273
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