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29 June 2001 Effects of up-conversion energy transfer on the decay shapes of the4 F3/2 level of Nd3+ in YAG at high-pump intensities
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Proceedings Volume 4430, ROMOPTO 2000: Sixth Conference on Optics; (2001) https://doi.org/10.1117/12.432826
Event: ROMOPTO 2000: Sixth Conference on Optics, 2000, Bucharest, Romania
Abstract
Experimental data presents a pump intensity dependence of the 4F3/2Nd3+ level emission in various hosts; these effects were assigned to the up-conversion processes. A new formalism that takes into account both up- and down-conversion processes and the statistical distribution of acceptors around donor in the case of direct processes is presented. This involves a time dependent of transfer function and two interaction types: dipolar and superexchange. The profile of excitation beam is considered in order to compare theoretical calculations with experimental data. Calculations concerning quantum efficiency as a function on the ratio between up- and down- conversion rates are presented.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Voicu Lupei, B. Diaconescu, and Aurelia Lupei "Effects of up-conversion energy transfer on the decay shapes of the4 F3/2 level of Nd3+ in YAG at high-pump intensities", Proc. SPIE 4430, ROMOPTO 2000: Sixth Conference on Optics, (29 June 2001); https://doi.org/10.1117/12.432826
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