Polarized spectroscopy of Sm 3+ ions in monoclinic KGd(WO 4 ) 2 crystals

We report on a polarization-resolved spectroscopic study of Sm 3+ -doped monoclinic KGd(WO 4 ) 2 crystals. The transition probabilities for Sm 3+ ions were calculated using a modified Judd-Ofelt theory. For the 4 G 5/2 → 6 H 9/2 transition in the red spectral range, the stimulated-emission cross-sec...

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Published inEPJ Web of conferences Vol. 287; p. 5041
Main Authors Baillard, Amandine, Loiko, Pavel, Rytz, Daniel, Schwung, Sebastian, Pavlyuk, Anatoly, Kornienko, Aleksei, Dunina, Elena, Fomicheva, Liudmila, Fromager, Michaël, Braud, Alain, Camy, Patrice
Format Journal Article
LanguageEnglish
Published 2023
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Summary:We report on a polarization-resolved spectroscopic study of Sm 3+ -doped monoclinic KGd(WO 4 ) 2 crystals. The transition probabilities for Sm 3+ ions were calculated using a modified Judd-Ofelt theory. For the 4 G 5/2 → 6 H 9/2 transition in the red spectral range, the stimulated-emission cross-section is 5.59×10 -21 cm² at 649.0 nm (for light polarization E || N p ) and the luminescence lifetime of the 4 G 5/2 state is 719 μs (0.4 at.% Sm 3+ -doping). Sm:KGd(WO 4 ) 2 is promising for orange and red lasers.
ISSN:2100-014X
2100-014X
DOI:10.1051/epjconf/202328705041