EPJ Web of Conferences (Jan 2023)

Polarized spectroscopy of Sm3+ ions in monoclinic KGd(WO4)2 crystals

  • Baillard Amandine,
  • Loiko Pavel,
  • Rytz Daniel,
  • Schwung Sebastian,
  • Pavlyuk Anatoly,
  • Kornienko Aleksei,
  • Dunina Elena,
  • Fomicheva Liudmila,
  • Fromager Michaël,
  • Braud Alain,
  • Camy Patrice

DOI
https://doi.org/10.1051/epjconf/202328705041
Journal volume & issue
Vol. 287
p. 05041

Abstract

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We report on a polarization-resolved spectroscopic study of Sm3+-doped monoclinic KGd(WO4)2 crystals. The transition probabilities for Sm3+ ions were calculated using a modified Judd-Ofelt theory. For the 4G5/2 → 6H9/2 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 || Np) and the luminescence lifetime of the 4G5/2 state is 719 μs (0.4 at.% Sm3+-doping). Sm:KGd(WO4)2 is promising for orange and red lasers.