LUMINESCENT QUARTZ GLASS Russian patent published in 2013 - IPC C03C3/06 C03C4/12 B82B1/00 

FIELD: chemistry.

SUBSTANCE: invention relates to doped glass, particularly Yb-containing quartz glass which is obtained using a sol-gel process, which can be used as active material of lasers and infrared amplifiers. Use of such glass as an active element of lasers or amplifiers enables to reduce radiation spectrum instability associated with inhomogeneous broadening which is typical for glass-like matrices. Such glass has the following composition, wt %: 1. SiO₂ 88.0-96.0; Yb₂O₃ 3.0-9.0; Rb₂O 1.0-3.0; or 2. SiO₂ 87.0-95.0; Yb₂O₃ 3. 0-9.0; Rb₂O 1.0-2.0; Cs₂O 1.0-2.0.

EFFECT: obtaining glass with high luminescent efficiency in the λ=0,99-1,06 mcm spectral range and a luminescence spectrum which is typical for single-centre systems.

1 tbl, 2 dwg