https://doi.org/10.1051/epjconf/202328705041
Polarized spectroscopy of Sm3+ ions in monoclinic KGd(WO4)2 crystals
1 Centre de Recherche sur les Ions, les Matériaux et la Photonique (CIMAP), UMR 6252 CEA-CNRS-ENSICAEN, Université de Caen Normandie, 6 Blvd Maréchal Juin, 14050 Caen, France
2 EOT GmbH, Struthstraße 2, D-55743 Idar-Oberstein, Germany
3 Nikolaev Institute of Inorganic Chemistry, SB of RAS, 3 Lavrentyev Ave., 630090 Novosibirsk, Russia
4 Vitebsk State Technological University, 72 Moskovskaya Ave., 210035 Vitebsk, Belarus
5 Belarusian State University of Informatics and Radioelectronics, 6 Brovka St., Minsk 220027, Belarus
* Corresponding author: amandine.baillard@ensicaen.fr
Published online: 18 October 2023
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.
© The Authors, published by EDP Sciences, 2023
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