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Author Jian, Ye ♦ Lodewijks, Kristof ♦ Lagae, Liesbet ♦ Van Dorpe, Pol ♦ Shioi, Masahiko ♦ Kawamura, Tatsuro
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword NANOSCIENCE AND NANOTECHNOLOGY ♦ MATERIALS SCIENCE ♦ FABRICATION ♦ GOLD ♦ INFRARED SPECTRA ♦ MASKING ♦ NANOSTRUCTURES ♦ PLASMONS ♦ RAMAN EFFECT ♦ RESONANCE ♦ SURFACES ♦ THIN FILMS ♦ WAVELENGTHS ♦ ELEMENTS ♦ FILMS ♦ METALS ♦ QUASI PARTICLES ♦ SPECTRA ♦ TRANSITION ELEMENTS
Abstract We investigate the plasmonic properties of gold nanorings in close proximity to a gold film. The rings have been fabricated using nanosphere lithography and are optimized to boost their near-infrared surface enhanced Raman scattering (SERS) effects. A SERS enhancement factor as large as 1.4x10{sup 7} has been achieved by tuning the separation between the gold nanorings and the gold film. In addition, we have numerically and experimentally demonstrated an enhanced tunability of the plasmon resonance wavelength and a narrowing of the plasmon linewidth for increasing ring-film interaction.
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 2010-10-18
Publisher Place United States
Journal Applied Physics Letters
Volume Number 97
Issue Number 16


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