期刊
PHYSICAL REVIEW LETTERS
卷 106, 期 16, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.106.163902
关键词
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资金
- MICINN [FIS2009-08203, CSD2007-046]
- EU [NMP3-SL-2008-214107]
- ICREA Funding Source: Custom
In this Letter, we study the Purcell effect in a 3D disordered dielectric medium through fluorescence decay rates of nanosized light sources. We report distributions of Purcell factor with non-Gaussian long-tailed statistics and an enhancement of up to 8 times the average value. We attribute this large enhancement to strong fluctuations of the local density of states induced by near-field scattering sustained by more than one particle. Our findings go beyond standard diagrammatic and single-scattering models and can be explained only by taking into account the full near-field interaction.
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