DICHROIC MATERIAL - FLUOROBORATE WITH ANTI-ZEOLITIC STRUCTURE Russian patent published in 2019 - IPC C30B9/04 C30B29/12 

FIELD: optics.

SUBSTANCE: invention relates to materials for polarization optical devices. Dichroic material is fluoroborate with "anti-zeolite" structure with general formula ; at x = 0, y = (0÷0.1) in form of frame [Ba₁₂(BO₃)₆]⁶⁺, folded by alternating layers (ABAB) along direction of crystallographic axis Z, containing variable amounts and type of guest anion groups formed in quaternary system Ba₆(BO₃)₄-Va₆(BO₃)_3.6F_1.2 - NaBa₁₂(BO₃)₇F₄- LiBa₁₂(BO₃)₇F₄, wherein A-layers of "anti-zeolitic" structure include guest (BO₃)^3- and (F₂)^2- groups, B-layers include guest anion groups (BO₃)³ and are optically-active, in which static and dynamic disordering of guest anion groups occurs.

EFFECT: technical result is creation of new dichroic material, the structure of which contains optically active layers with variable types and number of structural anion groups.

1 cl, 4 dwg, 2 tbl, 2 ex