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

THIN SOLID FILMS

卷:510

Article

Gryczynski, Ignacy ; Malicka, Joanna ; Nowaczyk, Kazimierz ; Gryczynski, Zygmunt ; Lakowicz, Joseph R.

关键词: surface plasmon-coupled emission;    waveguide;    silver film;    Nile Blue;   

DOI  :  10.1016/j.tsf.2005.07.312

来源: Elsevier

【 摘 要 】

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.

【 授权许可】

Free