Luminescent light filters based on Ce- Sm- and Ce-Sm-doped silica gel glasses for laser heads

摘要

The high concentrated silica glasses doped with Ce and Sm ions were prepared by the sol-gel technique. The possibility of preparation of the Ce-doped glasses with a low absorption coefficient in the optical range above 350 nm and the luminescence quantum yield $GREQ 90 percent is reported. Such glasses seem to be promising as filters for laser heads. The relatively high light scattering for Sm-doped glasses has been also observed.