Fig. 3: A design of optical polarization device based on LiBO2 crystal.
From: An excellent deep-ultraviolet birefringent material based on [BO2]∞ infinite chains

a Schematic design of Glan-type polarizer based on LiBO2 crystal. b Critical angle of total internal reflection (ic) for polarization along b- and c-axes of LiBO2 in a wavelength ranging from 165 to 200 nm