LiF crystals is kind of cubic crystal, the material can be cleaved along (100) and less commonly (110), it has high optical transmittance from the vacuum ultraviolet to the infrared spectrum region (0.11-7μm) and shows excellent transmittance in the VUV regions. Modest precautions should be taken against moisture and high energy radiation damage, LiF is attacked by atmospheric moisture at 400 °C and softens at 600 °C, it is sensitive to thermal shock, irradiation produces color centers.

Applications:

It can be used as a substrate material of windows, lens, polarizers, prisms, applied in the field of UV-sources, receivers and excimer lasers, X-ray fluorescence instrument.