dc.contributor.authorHu, Hailong
dc.contributor.authorAkimov, Yuriy A.
dc.contributor.authorDuan, Huigao
dc.contributor.authorLi, Xianglin
dc.contributor.authorLiao, Mingyi
dc.contributor.authorTan, Rachel Lee Siew
dc.contributor.authorWu, Lin
dc.contributor.authorChen, Hongyu
dc.contributor.authorFan, Hongjin
dc.contributor.authorBai, Ping
dc.contributor.authorLee, Pooi See
dc.contributor.authorYang, Joel K. W.
dc.contributor.authorShen, Ze Xiang
dc.identifier.citationHu, H., Akimov, Y. A., Duan, H., Li, X., Liao, M., Tan, R. L. S., et al. (2013). Photoluminescence via gap plasmons between single silver nanowires and a thin gold film. Nanoscale, 5(24), 12086-12091.en_US
dc.description.abstractIn this work, we investigate the one-photon photoluminescence from a system consisting of an Ag nanowire on an Au film with a ∼6 nm dielectric spacer that supports a localized resonance known as the gap plasmon mode. Although the Ag nanowire and Au film exhibit weak photoluminescence on their own, the combined system produces an enhanced PL emission. Our analysis reveals that the strong PL emission in this system was due to the enhanced laser absorption in, and PL emission from Au, with the Ag nanowire acting as an efficient antenna. The PL due to the gap mode is sensitive to the polarization of the laser excitation with respect to the nanowire orientation, and shows a clear dipolar emission profile. PL emission wavelengths were found to depend only on the nanowire width, and independent of its length. These observations were supported by simulation results indicating that gap plasmons are excited by light polarized transverse to the nanowire length.en_US
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en_US
dc.description.sponsorshipASTAR (Agency for Sci., Tech. and Research, S’pore)en_US
dc.rights© 2013 The Royal Society of Chemistry.en_US
dc.subjectGap plasmonen_US
dc.titlePhotoluminescence via gap plasmons between single silver nanowires and a thin gold filmen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US

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