Optical Properties of Gold Nanorings
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Aizpurua, J.; Hanarp, P.; Sutherland, D.; Käll, M.; Bryant, Garnett; García de A
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Article
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2003
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The American Physical Society
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English
⚖ 368 KB
The optical response of ring-shaped gold nanoparticles prepared by colloidal lithography is investigated. Compared to solid gold particles of similar size, nanorings exhibit a redshifted localized surface plasmon that can be tuned over an extended wavelength range by varying the ratio of the ring th