Polarized spectroscopy of electric and magnetic dipole transitions of Europium (III) ions in C 2 sites
Résumé
Abstract: Polarization anisotropy of luminescent properties of europium (III) ions in low-symmetry C 2 sites is studied using monoclinic (sp. gr. C 2/ c ) tungstate crystal KY(WO 4 ) 2 . The 5 D 0 → 7 F J (where J = 0…6) transitions are characterized for the principal light polarizations. Polarization selection rules for the magnetic dipole 5 D 0 → 7 F 1 transition are presented. The stimulated-emission cross-sections for Eu 3+ ions relevant for laser operation are determined.