Fluorescence quantum yield of rhodamine 6G using pulsed photoacoustic technique |
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| Authors: | P Sathy Reji Philip V P N Nampoori C P G Vallabhan |
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| Institution: | (1) Laser Division, Department of Physics, Cochin University of Science and Technology, 682 022 Cochin, India |
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| Abstract: | Experimental method for measuring photoacoustic(PA) signals generated by a pulsed laser beam in liquids is described. The
pulsed PA technique is found to be a convenient and accurate method for determination of quantum yield in fluorescent dye
solutions. Concentration dependence of quantum yield of rhodamine 6G in water is studied using the above method. The results
indicate that the quantum yield decreases with increase in concentration in the quenching region in agreement with the existing
reports based on radiometric measurements. |
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| Keywords: | Rhodamine 6G pulsed photoacoustics fluorescence quantum yield |
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