Femtosecond time-resolved excited state dynamics of cyanine encapsulated by β-cyclodextrin
2002
Fluorescence dynamics of a cyanine dye, 3,3′-di(3-sulfopropyl)-thiacyanine triethylaminium salt, encapsulated by β-cyclodextrin was investigated by femtosecond fluorescence time-resolved up-conversion technique. The quickening up of the fluorescence decay was found in comparison with the fluorescence dynamics of the dye in water. This phenomenon may be a good experimental support for the expanded BFO theory with two-dimensional excited potential surface.
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