Intraconfigurational 4f 7 transitions of Eu 2ϩ in KMgF 3 have been investigated by means of two-photon excitation spectroscopy. A well-resolved Stark structure of the 8 S 7/2 → 6 P 7/2,5/2 transitions is demonstrated and interpreted. Additional lines appearing in the excitation spectra are discussed in terms of noncubic perturbations at the substitutional impurity site. 4f 7 excited states of Eu 2ϩ belonging to the 6 D multiplet, inaccessible to single-photon spectroscopy, have been identified in
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.