P Loiko, P Koopmann,
X Mateos… - IEEE Journal of …, 2018 - ieeexplore.ieee.org
Cubic sesquioxides, RE 2 O 3, where RE= Y, Lu or Sc, are attractive host crystals for thulium
(Tm 3+) doping. A comparison of the spectroscopic properties of Tm 3+: RE 2 O 3 crystals in …