NV Gaponenko, AV Mudryi, OV Sergeev… - … Acta Part A: Molecular …, 1998 - Elsevier
Sol–gel derived Al2O3, SiO2, TiO2 and In2O3 films, containing about 10 wt.% Er2O3 have
been fabricated and the erbium PL (photoluminescence) in the region of 1.53 μm has been …