T-PS862 - CaF2 Equilateral Dispersive Prism, Uncoated, 10 mm
T-PS862 - CaF2 Equilateral Dispersive Prism, Uncoated, 10 mm
CaF2 is commonly used for applications requiring high transmission in the infrared and ultraviolet spectral ranges. The material exhibits a low refractive index, varying from 1.35 to 1.51 within its usage range of 180 nm to 8.0 µm, as well as an extremely high laser damage threshold. Calcium fluoride is also fairly chemically inert and offers superior hardness compared to its barium fluoride, magnesium fluoride, and lithium fluoride cousins.
| Material | Minimum Angle of Deviation |
Vdb | Surface Flatness @ 633 nm |
Clear Aperture |
Surface Quality |
Angular Tolerance |
Number of Polished Faces |
Index of Refraction Plot |
|---|---|---|---|---|---|---|---|---|
| CaF2 | 31.6° @ 633 nm | 95.00 | λ/2 | 70% | 40-20 Scratch-Dig | ±10 arcmin | 2c | Click |
