Substrates and finished optical components - windows, lenses and mirrors made from lithium fluoride (LiF), magnesium fluoride (MgF2), calcium fluoride (CaF2), barium fluoride (BaF2), sapphire (Al2O3), zinc selenide (ZnSe), copper (Cu), germanium (Ge) and silicon (Si) for laser and optical instruments applications in UV and IR wavelength ranges.