Influence of growth conditions on the optical spectra of gamma irradiated BaF2 and CaF2 crystals
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Crystal Growth"
DOI: 10.1016/j.jcrysgro.2019.125188
Abstract: Abstract A comparative study of the gamma irradiated BaF2 and CaF2 crystals obtained under different growth conditions, using the Bridgman technique, is presented. A special attention was attributed to the influence of trace amount of… read more here.
Keywords: baf2 caf2; gamma irradiated; growth; amount ... See more keywords
Spectroscopic properties of Ho3+ optical centers in CaF2 crystals at the two-micron laser transition
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Luminescence"
DOI: 10.1016/j.jlumin.2020.117584
Abstract: Abstract The spectroscopic properties and lifetimes of various Ho3+ optical centers at the two-micron 5I7→5I8 laser transition were studied in CaF2 crystals at cryogenic temperatures (15 K, 77 K) using resonant selective excitation of holmium ions. For… read more here.
Keywords: laser transition; optical centers; spectroscopic properties; caf2 crystals ... See more keywords
Luminescence of defect clusters in the disordered anion sublattice of CaF2 crystals
Sign Up to like & getrecommendations! Published in 2018 at "Solid State Ionics"
DOI: 10.1016/j.ssi.2018.05.027
Abstract: Abstract The fast quenching of CaF2 crystals preheated up to 1000 °C allows to stabilize the high-temperature disordering of anion sublattice typical for the superionic state of the crystal. Such procedure results in the formation of… read more here.
Keywords: state; anion sublattice; caf2 crystals; luminescence ... See more keywords
Optical Modulation of Anti-Stokes Luminescence in CaF2:Er Crystals
Sign Up to like & getrecommendations! Published in 2020 at "Inorganic Materials"
DOI: 10.1134/s0020168520070067
Abstract: Emission and visible photoluminescence excitation spectra of CaF2:Er (0.5 at %) crystals have been studied under different optical pumping conditions. The results demonstrate that anti-Stokes luminescence of the erbium-doped crystals has higher intensity in the… read more here.
Keywords: stokes luminescence; caf2 crystals; optical modulation; anti stokes ... See more keywords