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

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 fluctua...

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Bibliographic Details
Published inOptics express Vol. 18; no. 6; pp. 6360 - 6365
Main Authors Ruijgrok, P V, Wüest, R, Rebane, A A, Renn, A, Sandoghdar, V
Format Journal Article
LanguageEnglish
Published United States 15.03.2010
Subjects
Computer Simulation
Light
Models, Chemical
Nanostructures - chemistry
Nanostructures - ultrastructure
Nephelometry and Turbidimetry - methods
Scattering, Radiation
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Summary: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 threedimensional localization of light directly on the microscopic scale.
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ISSN:1094-4087
DOI:10.1364/OE.18.006360