Spectroscopic and Dynamic Characteristics of Energy Transfer of Nd3+→Yb3+ and Yb3+→Er3+ in Aluminate Glasses
1993
The processes of excitation energy transfer among Nd3+, Yb3+ and Er3+ ions in multicomponent aluminate glasses without any classical glass formers were invetiated experimentally, using a conventional spectroscoy and a kinetic model which describes the interactions between active ions. The efficiency of Nd3+→Yb3+ energy transfer is found to be so high as to nearly reach 100%. In Yb3+ and Er3+ codoped system, a mutual migration of energy occurs. The energy transfer from Yb3+ to Er3+ is considerably less efficient, owing to the influence of efficient back-energy transfer.
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