Absorption saturation and photodarkening in semiconductor-doped glasses

Kull, M.; Coutaz, J. L.; Manneberg, G.; Grivickas, V.
May 1989
Applied Physics Letters;5/8/1989, Vol. 54 Issue 19, p1830
Academic Journal
Transmission measurements show a large decrease of the absorption saturation in semiconductor-doped glasses which have been exposed to intense absorbing light. A simple saturation model including nonradiative and Auger recombination and an unsaturable part of the absorption, interpreted as free-carrier absorption, explains the observed changes.


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