MATERIAL FOR DICHROIC LIGHT POLARIZATION - CRYSTAL LiBa (BO)F Russian patent published in 2017 - IPC C30B9/04 C30B9/12 C30B29/12 G02F1/01 G02F1/17 G02B5/30 

FIELD: physics.

SUBSTANCE: invention relates to the materials for the polarization optical devices that can be used to obtain linear-polarized light in the optic-electronic devices: polarimeters, ellipsometers, dichrometers, photoelectric autocollimators, modulators of light fluxes, devices of indicating, displaying and storing information, memory elements. Crystal LiBa₁₂(BO₃)₇F₄, characterized by the presence of the selective absorption effect - the dichroism effect in the visible spectrum area, is grown from the solution-melt of the primary components in the ratio of 0.30 BaCO₃ : 0.30 BaF₂ : 0.30 H₃BO₃ : 0.10 Li₂CO₃ on seeded growth by reducing the solution-melt temperature of 910°C to 888°C at the temperature lowering speed of 1.2-1.5°C/day and one-sided crystal rotation at the rate of 1.0-2.0 rpm.

EFFECT: obtaining effective medium for linear dichroic polarization, the optical quality of which provides manufacturing the plates providing reception of the polarized light in the visible spectrum area.

4 dwg, 1 ex