Pronounced Effects of Anisotropy on Plasmonic Properties of Nanorings Fabricated by Electron Beam Lithography

TitlePronounced Effects of Anisotropy on Plasmonic Properties of Nanorings Fabricated by Electron Beam Lithography
Publication TypeJournal Article
Year of Publication2012
AuthorsNear, R, Tabor, C, Duan, JS, Pachter, R, El-Sayed, M
JournalNano Letters
Volume12
Pagination2158-2164
Date PublishedApr
ISBN Number1530-6984
Accession NumberWOS:000302524600070
Abstract

Gold nanoring dimers were fabricated via EBL with dimensions of 127.6 +/- 2.5 and 57.8 +/- 2.3 nm for the outer and inner diameters, respectively, with interparticle separations ranging from 17.8 +/- 3.4 to 239.2 +/- 3.7 nm. The coupling between the inner and outer surfaces of a single nanoring renders it very sensitive to any anisotropy. We found that anisotropy in the particle geometry and anisotropy introduced by the substrate combine to create very unique spectral features in this system.

DOI10.1021/nl300622p