Open AccessFluorescence transmission through 1-D and 2-D periodic metal films
Author(s) -
Yongdong Liu,
Steve Blair
Publication year - 2004
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.12.003686
Subject(s) - optics , surface plasmon , scattering , materials science , diffraction , wavelength , fluorescence , extraordinary optical transmission , transmission (telecommunications) , plasmon , polarization (electrochemistry) , light scattering , excited state , radiation , surface plasmon polariton , physics , chemistry , atomic physics , electrical engineering , engineering
We study the transmission of fluorescence through periodically modulated metal films. In one-dimensional corrugated films, transmission is mediated by coherent scattering of surface plasmons directly excited by fluorophores on the surface. This scattering is shown to be a two-dimensional problem in that diffraction orders along both axes are obtained with well-defined states of polarization. In films consisting of two-dimensional arrays of sub-wavelength apertures, an additional mechanism exists in the direct transmission of fluorescence through the apertures, which is the dominant mechanism of transmission as shown by measurement of the radiation pattern from these structures.