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Title of article :
A theory of fluorescence depolarization in mesophases with tilted distribution of directors
Author/Authors :
Arcioni، نويسنده , , Alberto and Tarroni، نويسنده , , Riccardo and Zannoni، نويسنده , , Claudio، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2002
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Abstract :
We develop a theory of fluorescence depolarization for a probe molecule reorienting in a mesophase with local uniaxial symmetry and a random distribution of directors tilted with respect to the axis of the structure. The theory should be applicable, e.g., to probes dissolved in a pyramidic liquid crystal or to chromophores attached to a side chain polymer brush. We work out expressions for the polarized fluorescence intensities as a function of the cone opening and show how these depend on the orientational correlation functions and on the order parameters for a uniaxial or biaxial probe.
Journal title :
Chemical Physics Letters
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