Abstract
A formula for calculating the amplification coefficient for a four-level system from luminescence data is derived. Measurement of the absolute value of the quantum yield of photoluminescence is described and the amplification coefficient is calculated for four different sorts of glass.
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This work was performed in the Institute of Physics, Czechoslovak Academy of Sciences, Prague.
Discussions on the problem with K. Pátek and preparation of the samples by J. Walter are gratefully acknowledged.
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Pantoflíček, J. Calculation of the amplification coefficient of stimulated emission from fluorescence measurements. Czech J Phys 17, 27–33 (1967). https://doi.org/10.1007/BF01692045
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DOI: https://doi.org/10.1007/BF01692045