Korth Kristalle GmbH

Refractive Index

 
 

Calcium Fluoride / RAMAN (

CaF2

)

Properties (CaF2)   
Transmission Range (50% of total transmission)  0,125 - 10,5 (thickness 2mm) µm  
Refractive Index  1,43288 @633nm  
Reflective Loss   2,89% @4 µm  
Reststrahlen  35 µm  
Density   3.18 g/cm3  
Melting Point   1418°C 
Molecular Weight   78.08 
Thermal_Conductivity   9.71 W/(m·K)
Heat Capacity   854 J/(kg·K)  
Thermal Expansion   18,9 ·10-6/K (298K)) 
Hardness (Mohs)   163  
Mohshärte   4  
Young`s Modulus   75.8 GPa  
Shear Modulus   33.77 GPa  
Bulk Modulus   82.71 GPa  
Rupture Modulus   40 MPa  
Elastic Coefficient   C11 = 165; C12 = 47; C44 = 33,9 GPa  
Dielectric Constant   6.76  
Solubility in Water   0.0016 g/100g @25°C  
Crystal Structure   Single crystal, synthetic  
Crystal Type   Cubic, CaF2 type structure, a= 5,46 Å 
Cleavage Planes   {111}  
Poisson Ratio  0,29 
Application   The material is available in different quality levels (IR, UV, VUV-Laser). Field of application is the IR analytic, astronomical- und camera lenses and optics for Excimer laser. In the doped version like CaF2:Eu it is used as a Scintillator .  
Remarks   soluble in acids 

Transmission spectrum

CAF2 2MM HOMEPAGE ENGL.JPG

Transmission spectrum-2

CaF2 englisch

Transmission spectrum-3

HOMEPAGE RAMAN 473NM GEOMAR ENGL.JPG

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