Journal
THIN SOLID FILMS
Volume 510, Issue 1-2, Pages 15-20Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2005.07.312
Keywords
surface plasmon-coupled emission; waveguide; silver film; Nile Blue
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Funding
- NCRR NIH HHS [P41 RR008119] Funding Source: Medline
- United States NCRR Funding Source: Medline
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Surface plasmon-coupled emission (SPCE) phenomenon is the coupling of excited fluorophores near a silver film with surface plasmons, resulting in directional emission into the underlying glass substrates. We report a complex coupling of Nile Blue fluorophore with 50 nm silver mirror, resulting in emission at several angles in the glass substrate, with either s or p polarization. This complex pattern of directional and polarized emission appears to be due to optical waveguide effects occurring when the sample thickness becomes comparable to the emission wavelength. We expect waveguide-modulated SPCE to have applications to biophysics and sensing. (c) 2006 Published by Elsevier B.V.
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