Ultrafast carrier and grating lifetimes in semiconductor-doped glasses

Yao, S. S.; Karaguleff, C.; Gabel, A.; Fortenberry, R.; Seaton, C. T.; Stegeman, G. I.
May 1985
Applied Physics Letters;5/1/1985, Vol. 46 Issue 9, p801
Academic Journal
The time dependence of both the photoluminescence due to carrier recombination and the gratings created by degenerate four-wave mixing were measured in semiconductor-doped colorfilter glasses. Values ranging from 80 to less than 16 ps (laser pulse width limited) are measured in several different samples at various excitation levels. A slower mechanism, believed to be thermal in nature, is also observed with a lifetime in excess of 9 ns.


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