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arXiv · 1401.3999

Effect of long range spatial correlations on the lifetime statistics of an emitter in a two-dimensional disordered lattice

N. de Sousa·J. J. Sáenz·A. García-Martín·L. S. Froufe-Pérez·M. I. Marqués
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Abstract

The effect of spatial correlations on the Purcell effect in a bidimensional dispersion of resonant nanoparticles is analyzed. We perform extensive calculations on the fluorescence decay rate of a point emitter embedded in a system of nanoparticles statistically distributed according to a simple 2D lattice-gas model near the critical point. For short-range correlations (high temperature thermalization) the Purcell factors present a long-tailed statistic which evolves towards a bimodal distribution when approaching the critical point where the spatial correlation length diverges. Our results suggest long-range correlations as a possible origin of the large fluctuations of experimental decay rates in disordered metal films.

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N. de Sousa, J. J. Sáenz, A. García-Martín, L. S. Froufe-Pérez, M. I. Marqués. 2014-06-10. Effect of long range spatial correlations on the lifetime statistics of an emitter in a two-dimensional disordered lattice. https://doi.org/10.1103/physreva.89.063830

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