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Please use this identifier to cite or link to this item: http://dyuthi.cusat.ac.in/purl/2472

Title: Studies on Fluorescence Efficiency and Photodegradation of Rhodamine 6G Doped PMMA Using a Dual Beam Thermal Lens Technique
Authors: Achamma, Kurian
Nibu, A George
Binoy, Paul
Nampoori, V P N
Vallabhan, C P G
Technology
Keywords: Thennal lens
Fluorescence quantum yield
Photostability
Dye doped polymer
Issue Date: 2002
Publisher: Taylor & Francis
Abstract: In this paper we report the use of the dual beam thermal lens technique as a quantitative method to determine absolute fluorescence quantum efficiency and concentration quenching of fluorescence emission from rhodamine 6G doped Poly(methyl methacrylate) (PMMA), prepared with different concentrations of the dye. A comparison of the present data with that reported in the literature indicates that the observed variation of fluorescence quantum yield with respect to the dye concentration follows a similar profile as in the earlier reported observations on rhodamine 6G in solution. The photodegradation of the dye molecules under cw laser excitation is also studied using the present method.
URI: http://dyuthi.cusat.ac.in/purl/2472
Appears in Collections:Dr.C P Girijavallabhan

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