Abstract

Lithium yttrium fluoride (LiYR₄) doped with different rare-earth ions has been the subject of several studies. Its IR laser applications are well known [1] and, as an upconversion laser, it is now the object of extensive investigations [2]. In particular, the exact knowledge of the values of the radiative probabilities of the intraconfigurational 4f transitions of the rare-earth ions in this crystal is always a matter of discussion [3, 4] and this is the reason why we try to clarify this point in this paper in the case of Nd³⁺, Er³⁺, Tm³⁺ and Ho³⁺ doped LiYF₄.

© 1993 Optical Society of America