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Basic Properties of CaF2 Crystal

Transparency Range: 130 - 9000 nm

material-caf.GIF (11527 bytes)

Transmission Curve

Crystal Symmetry: Cubic
Density: 3.18 g/cm3
Thermo-Optic Coefficients:
dn/dT= -13.1 x 10
-6 /oC
Optical Homogeneity: Δn < 10-6/cm
Mohs Hardness:  4
Thermal Conductivity:  10 W/m/K
Thermal Expansion Coefficients: α = 18 x 10-6/K

Sellmeier Equations (λ in µm):
n2 = 1+ 0.56759λ2/(λ2 - 0.00253 ) + 0.47109λ2/(λ2-0.01001) + 3.84847λ2/(λ2-1200.56000)

Wavelength(nm) Index of refraction
5000 1.3989
2500 1.4211
1064. 1.4284
800 1.4305
632.8 1.4329
532 1.4353
400 1.4418
355 1.4458
266 1.4618
213 1.4850


 

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