The phase stability of the Lu2O3–H2O–KOH system is studied.
An improved method for hydrothermal growth of Ln:Lu2O3 is reported.
Crystals 2–8 mm in size are grown using higher temperatures and narrower gradients.
Doping of all spectroscopically active lanthanide ions in Lu2O3 is demonstrated.
Absorption spectroscopy of Nd:Lu2O3 is reported from 298 to 80 K.