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Two-Photon Excited Fluorescence and Molecular Reorientations in Liquid Solutions
Umeå University, Faculty of Science and Technology, Chemistry.
2007 (English)In: Journal of Fluorescence, ISSN 1053-0509 (Print) 1573-4994 (Online), Vol. 17, no 5, 466-80 p.Article in journal (Refereed) Published
Abstract [en]

Theoretical expressions are derived that relate the two-photon excited fluorescence depolarisation experiments to the molecular symmetry and the rotational motions of fluorescent molecules. Diffusive rotational motions in liquid solvents are considered, as well as the influence of fast unresolved motions (e.g. librations). The results obtained are compared with one-photon excited fluorescence depolarisation experiments. The derived theoretical expressions can be applied for detailed analyses of the molecular rotation in solvent. Several of the results are useful for determining and assigning the components of two-photon absorption tensors.

Place, publisher, year, edition, pages
2007. Vol. 17, no 5, 466-80 p.
Keyword [en]
Two-photon excited fluorescence, Two-photon excited fluorescence depolarisation, Two-photon excited anisotropy, Theory of rotational motion, Rotational diffusion, Librations, Perylene
URN: urn:nbn:se:umu:diva-16021DOI: doi:10.1007/s10895-007-0189-xOAI: diva2:155694
Available from: 2007-08-23 Created: 2007-08-23 Last updated: 2011-01-11Bibliographically approved

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ReferencesLink to record
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