Photonic crystals for improved light harvesting

Koen Clays; Branko Kolaric; Kasper Baert; Renaud A. L. Vallée

doi:10.1117/12.793233

2 September 2008 Photonic crystals for improved light harvesting

Koen Clays, Branko Kolaric, Kasper Baert, Renaud A. L. Vallée

Proceedings Volume 7049, Linear and Nonlinear Optics of Organic Materials VIII; 70490J (2008) https://doi.org/10.1117/12.793233
Event: Photonic Devices + Applications, 2008, San Diego, California, United States

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.

Citation Download Citation

Koen Clays, Branko Kolaric, Kasper Baert, and Renaud A. L. Vallée "Photonic crystals for improved light harvesting", Proc. SPIE 7049, Linear and Nonlinear Optics of Organic Materials VIII, 70490J (2 September 2008); https://doi.org/10.1117/12.793233

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