OPTICAL ALKALI-ALUMINUM-BORATE GLASS CERAMICS WITH CHROMIUM IONS Russian patent published in 2022 - IPC C03C10/10 G02B1/02 

FIELD: optical technology.

SUBSTANCE: invention relates to optical materials science and can be used in the creation of solid-state lasers, including fiber lasers, and luminescent optical materials. The claimed optical alkali-aluminum-borate glass ceramics refers to a potassium-lithium-aluminum-borate system with trivalent chromium ions and has the following composition, mol. %: Li₂O 0-25; Al₂O₃ 5-35; K₂O 0-20; B₂O₃ 30-90; Sb₂O₃ 0-6; Cr₂O₃ 0.005-0.4; NH₄F 0-5; NH₄F⋅HF 0-5.5; NH₄H₂PO₄ 0-10.

EFFECT: increase in the quantum yield and lifetime of the luminescence of the material, as well as an increase in transparency in the visible region of the spectrum of optical alkali-aluminum-borate glass ceramics with chromium ions.

1 cl, 1 ex, 6 dwg