Spontaneous emission of a nanoscopic emitter in a strongly scattering disordered medium

Details Spontaneous emission of a nanoscopic emitter in a strongly scattering disordered medium Spontaneous emission of a nanoscopic emitter in a strongly scattering disordered medium

2010-01-21

arxiv.org/abs/1001.3882v1

Physics

Quantum Physics

9 pages, 4 figures

Scientific paper

Fluorescence lifetimes of nitrogen-vacancy color centers in individual diamond nanocrystals were measured at the interface between a glass substrate and a strongly scattering medium. Comparison of the results with values recorded from the same nanocrystals at the glass-air interface revealed fluctuations of fluorescence lifetimes in the scattering medium. After discussing a range of possible systematic effects, we attribute the observed lengthening of the lifetimes to the reduction of the local density of states. Our approach is very promising for exploring the strong three-dimensional localization of light directly on the microscopic scale.

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