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Tuneable visible resonances in crescent shaped nano-split-ring resonators
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10.1063/1.2772180
/content/aip/journal/apl/91/9/10.1063/1.2772180
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/9/10.1063/1.2772180
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Scanning electron micrographs of split ring arrays. (a) Scanning electron micrographs (SEM) of array C showing uniformity of fabrication. (b) High resolution SEMs of split ring crescents found in arrays A–D. (c) SEM of radius split ring crescents found in arrays E–G.

Image of FIG. 2.
FIG. 2.

(Color online) Resonant response of radius split rings. [(a) and (b)] Experimental and [(c) and (d)] simulated extinction spectra of radius split rings with varying gaps (arrays A–D). (a) and (c) show the resonances when the electric field is polarized perpendicular to the split, whereas (b) and (d) show the resonances when the electric field is polarized parallel to the split.

Image of FIG. 3.
FIG. 3.

(Color online) Electric field enhancement at resonance for radius rings. FDTD simulations of normalized electric field in the plane, as a slice through the center of array D’s ring structure, at each resonance frequency.

Image of FIG. 4.
FIG. 4.

(Color online) Resonant response of radius split rings. [(a) and (b)] Experimental and [(c) and (d)] simulated extinction spectra of radius split rings with varying gaps (arrays E–G). (a) and (c) show the resonances when the electric field is polarized perpendicular to the split, whereas (b) and (d) show the resonances when the electric field is polarized parallel to the split.

Image of FIG. 5.
FIG. 5.

(Color online) Dispersion of plasmon resonances with changing arc length. (a) Gold material area vs resonance frequency for , , and plasmon modes in arrays A–D measured experimentally and numerically. (b) Gold material area vs resonance frequency for , , and plasmon modes in arrays E–G measured experimentally.

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/content/aip/journal/apl/91/9/10.1063/1.2772180
2007-08-28
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Tuneable visible resonances in crescent shaped nano-split-ring resonators
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/9/10.1063/1.2772180
10.1063/1.2772180
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