Open AccessSurface plasmon-coupled emission from shaped PMMA films doped with fluorescence molecules
Author(s) -
D. G . Zhang,
K. J. Moh,
Xiaocong Yuan
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.012185
Subject(s) - materials science , fluorescence , optics , surface plasmon , laser induced fluorescence , polarization (electrochemistry) , total internal reflection , doping , plasmon , optoelectronics , chemistry , physics
Surface plasmon-coupled emission from shaped PMMA films doped with randomly oriented fluorescence molecules was investigated. Experimental results show that for different shapes, such as triangle or circular structures, the SPCE ring displays different intensity patterns. For a given shape, it was observed that the relative position and polarization of an incident laser spot on the shaped PMMA can be used to adjust the fluorescence intensity distribution of the SPCE ring. The proposed method enables controlling the fluorescence emission in azimuthal direction in addition to the radial angle controlled by common SPCE, which will further enhances the fluorescence collection efficiency and has applications in fluorescence sensing, imaging and so on.