Cooperative Processes in Activated Glasses
We have investigated cooperative processes in activated glasses, which are the result of the interaction of two or more ions in excited states. It has been shown that in these glasses (activators Yb-Tb, Yb-Eu) accumulation of energy occurs both by cooperative sensitization and by combinative excitation. Quantitative characteristics of cooperative processes have been measured, i.e.: (a) dynamic-phenomenological constant for the rate of cooperative interaction, (b) energetic-quantum yield of cooperative luminescence. The functional dependence of the efficiency of cooperative processes on the power and energy of excitation, structure and composition of the glass, temperature, and ratio of the concentration of activators have also been investigated.
KeywordsMole Percent Cooperative Interaction Cooperative Process Matrix Zone Cooperative Energy Transfer
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