Abstract
Direct excitation of the 3PO-state of Pr3+ in CaF2 using 4765 Å (Ar-ion laser) at low temperatures leads to emission attributed to at least three distinct Pr3+-sites (1,2). The present paper deals with multisite emission of Pr3+ in CaF2 under excitation conditions leading to indirect population of the 3PO-state.
© 1984 Optical Society of America
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