BK7 | Fused Silica | Sapphire | CaF 2 | MgF 2 | Crystal Quartz |
CaF 2

CaF 2 is a crystal, which has good transmission from 170 nm to 7775 nm. It's slightly soluble in water and susceptible to thermal shock. CaF 2 is commonly used in IR components such as windows, Lenses and prisms.


Transmission range: 170 nm~7775 nm
Thermal Expansion coefficient: 18.85X10 -6 /K
Density: 3.18 g/cm 3