Title of article
Optical transient bleaching of photochromic polytungstic acid
Author/Authors
Yumashev ، نويسنده , , K.V and Malyarevich، نويسنده , , A.M and Posnov، نويسنده , , N.N and Denisov، نويسنده , , I.A and Mikhailov، نويسنده , , V.P and Artemyev، نويسنده , , M.V and Sviridov، نويسنده , , D.V، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1998
Pages
9
From page
567
To page
575
Abstract
The nonlinear optical properties of UV-coloured colloidal polytungstic acid imbedded in polyvinylalcohol film have been studied using a picosecond pump–probe technique. The intervalence charge transfer bands in the red-near IR region were found to exhibit transient bleaching that decays monoexponentially with the characteristic time of ∼300 ps. The results obtained are discussed in terms of the splitting of energy levels of metal ion in the ligand field and the delocalization of valence states.
Journal title
Chemical Physics Letters
Serial Year
1998
Journal title
Chemical Physics Letters
Record number
1773579
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