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Proceedings Paper

Photonic crystals for improved light harvesting
Author(s): Koen Clays; Branko Kolaric; Kasper Baert; Renaud A. L. Vallée
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Paper Abstract

The fluorescence of chromophores embedded in a photonic crystal is inhibited by the presence of a photonic pseudo-gap. We present the influence of such an incomplete bandgap on the emission and energy transfer by studying the steady-state and time-resolved emission properties of both a donor and an acceptor fluorophore in a self-assembled photonic crystal. Our results clearly show an inhibition of the donor emission and a concomitant enhancement of the acceptor emission, indicating improved energy transfer from donor to acceptor. This is explained by the decreased number of available photonic modes for radiative decay for the donor in a suitable engineered photonic crystal with respect to in the effective homogeneous medium.

Paper Details

Date Published: 2 September 2008
PDF: 8 pages
Proc. SPIE 7049, Linear and Nonlinear Optics of Organic Materials VIII, 70490J (2 September 2008); doi: 10.1117/12.793233
Show Author Affiliations
Koen Clays, Katholieke Univ. Leuven (Belgium)
Branko Kolaric, Katholieke Univ. Leuven (Belgium)
Kasper Baert, Katholieke Univ. Leuven (Belgium)
Renaud A. L. Vallée, Katholieke Univ. Leuven (Belgium)

Published in SPIE Proceedings Vol. 7049:
Linear and Nonlinear Optics of Organic Materials VIII
Rachel Jakubiak, Editor(s)

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