CaF2

Calcium Fluoride has appropriate refractive index variations for wavelengths and transmission to wavelengths from vacuum ultraviolet 125nm to infrared 12um.
It can be used as a prism, lens or window within a wide region from ultraviolet to infrared. Also, since it has unique optical dispersion (Abbe's number:95),
it can be used as an achromatic lens(Apocromat) combined with other optical materials.
It can also be used as a laser crystal or radiation detection crystal by doping it with the appropriate rare earth elements.
Capabilities
1. Material: VUV Grade CaF2
2. Diameter: 1-45mm
3. Length: 1-75mm
Specifications:
Clear Aperture-----------------------------------85% of Diameter
Surface Flatness---------------------------------λ/4 at 633nm
Surface Quality----------------------------------20/10
Optical properties
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Physical properties
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Chemical properties
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