Abstract
A spectral theory of fluorescence reabsorption is presented that allows us to describe the effects of radiation trapping, which especially occurs in barrel-polished laser rods, as an effective change of the excitation lifetime. This effect causes a local fluorescence lifetime difference in the laser medium and thus a local change in the quantum efficiency. The theory is compared to experimental results obtained with an Er3+:YAG rod with good agreement.
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Eichhorn, M. Fluorescence reabsorption and its effects on the local effective excitation lifetime. Appl. Phys. B 96, 369–377 (2009). https://doi.org/10.1007/s00340-009-3395-1
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DOI: https://doi.org/10.1007/s00340-009-3395-1