Role of Auger recombination in the photodarkening process of semiconductor-doped glasses

Summary from only given. In this paper we show that the photodarkening effect arises when Auger recombination takes place in the nanocrystallites. The experimental study is performed through time-resolved measurements of the diffraction efficiency of gratings encoded in the semiconductor doped glasses (SCDG) by the interference of two nanosecond duration laser pulses.