PRODUCTS

CaF2 Crystals
Description
CaF2
Calcium fluoride (CaF2)single crystal shows good optical and thermo-mechanical properties. It is widely used as
optical windows, lenses and prisms in 0.13μm~9.0μm. For its optical isotropy, low absorption and low refractive index.
CaF2 has found unique advantages in high power laser and UV laser optics.

Main Properties and Performance
Transmission range (μm) 0.13~9.0
Transmittance >90% (0.3~7μm,3mm)
Refractivity(5μm) 1.39908
Expansion Coefficient (℃-1) 18.85×10-6
Knoop hardness (kg/mm2) 158.3(100)
Elastic Coefficients C11=164;C12=53;C44=33.7
Young’s modulus (GPa) 75.79
Poisson’s ratio 0.28
Solubility (g/100gH2O·20℃) 0.0017
Cleavage plane -111
Density(g/cm3) 3.18
Melting Point(℃) 1360

Refractive Index

Wavelength (um) Refractive Index (n) Wavelength (um) Refractive Index (n)
0.1495 1.58 4 1.4069
0.1612 1.549 5 1.399
0.2 1.4951 6 1.3856
0.3 1.454 7 1.3693
0.4 1.4419 8 1.3498
0.5 1.4365 9 1.3268
1 1.4289 10 1.3002
2 1.4239 11 1.2676
3 1.4179 12 1.2299

Transmission Curve

Ms. Lin

Mr. Wen

Ms.Chen