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The temperature dependence from 28 to 290°C of the excited-state absorption cross sectionσ₂ₐ(E)in the gain wavelength region of alexandrite has been determined from the temperature dependence of the single pass gain (SPG) and of the fluorescence.σ₂ₐ(E)and the emission cross section increase with temperature at approximately the same rate.
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Shand et al. (1983) studied this question.
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