Abstract
We introduce an experimental approach for mapping effective local values of dielectric characteristics of solid films and the analysis of the related local-field effects. The characterisation technique is based on the imaging and spectroscopy of single chromophore molecules at cryogenic temperatures. The progress in the theory of fluorescence enhancement due to the local field effects is reported.
Highlights
We introduce an experimental approach for mapping effective local values of dielectric characteristics of solid films and the analysis of the related local-field effects
We report the progress in development of the experimental approach for mapping effective values of local dielectric characteristics of frozen solid films and the analysis of the effects either enhanced or suppressed by the local fields
Since the fluorescence lifetime of a single dye molecule imbedded in a transparent matrix depends on the properties of the encapsulating medium at different spatial scales it has long been a challenge to detect inhomogeneities in the host material by measuring the lifetime of individual molecules distributed over the sample [1]
Summary
We introduce an experimental approach for mapping effective local values of dielectric characteristics of solid films and the analysis of the related local-field effects. The characterisation technique is based on the imaging and spectroscopy of single chromophore molecules at cryogenic temperatures.
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