Waveguide-modulated surface plasmon-coupled emission of Nile blue in poly(vinyl alcohol) thin films

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 em...

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Veröffentlicht in:	Thin solid films 2006-07, Vol.510 (1), p.15-20
Hauptverfasser:	Gryczynski, Ignacy, Malicka, Joanna, Nowaczyk, Kazimierz, Gryczynski, Zygmunt, Lakowicz, Joseph R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Circuit properties Collective effects Condensed matter: electronic structure, electrical, magnetic, and optical properties Electric, optical and optoelectronic circuits Electron states Electronics Exact sciences and technology Exchange, correlation, dielectric and magnetic functions, plasmons Integrated optics. Optical fibers and wave guides Nile Blue Optical and optoelectronic circuits Physics Silver film Surface plasmon-coupled emission Waveguide
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	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.
ISSN:	0040-6090 1879-2731
DOI:	10.1016/j.tsf.2005.07.312