Open AccessPhotoluminescence enhancement in nanoimprinted photonic crystals and coupled surface plasmons
Author(s) -
V. Reboud,
N. Kehagias,
M. Zelsmann,
C. Schuster,
M. Fink,
F. Reuther,
G. Gruetzner,
C. M. Sotomayor Torres
Publication year - 2007
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.15.007190
Subject(s) - materials science , photoluminescence , nanoimprint lithography , optoelectronics , surface plasmon , photonic crystal , plasmon , optics , purcell effect , nanopillar , spontaneous emission , nanotechnology , nanostructure , fabrication , laser , medicine , alternative medicine , physics , pathology
A method to enhance the photoluminescence of dye chromophores-loaded by coupling the emission to surface plasmons in nanoimprinted photonic crystals is reported. A 9-fold enhancement in the spontaneous emission intensity of a rhodamine-doped polymer film is achieved on a silver layer due to surface plasmon excitation. By changing the surface plasmon frequency, this enhancement can be suppressed. When the polymer film is patterned by nanoimprint lithography with a twodimensional photonic crystal the photoluminescence intensity increases up to 27 times compared to unpatterned samples on a quartz substrate.