Korth Kristalle GmbH

Refractive Index

 
 

Magnesium Fluoride (

MgF2

)

Properties (MgF2)   
Transmission Range (50% of total transmission)   0,118 - 8,5 µm (thickness 2mm)  
Refractive Index   no = 1,375, ne = 1,389 @633nm  
Reflective Loss  2,52%@0,633 µm  
Reststrahlen   20.0 µm  
Density   3.177 g/cm3  
Melting Point   1255°C  
Molecular Weight   62.32 
Thermal Conductivity   || C: 21 W/(m·K) @300K, C: 33,6 W/(m·K) @300K 
Heat Capacity   1004 J/(kg·K) 
Thermal Expansion   || C: 8,9 · 10-6/K; C: 13,7 · 10-6 /K @293K 
Hardness (Mohs)   415 (Mohs) 
Young`s Modulus   138.55 GPa  
Shear Modulus   54.66 GPa  
Bulk Modulus   101.32 GPa  
Rupture Modulus   60 MPa  
Elastic Coefficient   C11 = 138; C12 = 88; C13 = 62; C33 = 201; C44 = 56,5; C66 = 95,6 GPa  
Dielectric Constant   || C: 4,87; C: 5,45 @95 Khz - 42 MHz 
Solubility in Water   < 0.0002 g / 100g @0°...60°C  
Crystal Structure   single crystal, synthetic  
Crystal Type  tetragonal, rutile type structure, a= 4,623 Å; c= 3,053 Å  
Cleavage Planes   (110) (bad) 
Poisson Ratio   0.276   
Application   VUV optics (space technology), polarizing optics, windows and prisms for Excimer Laser 
Remarks   Max. temperature for application: 500°C 

Transmission spectrum

MGF2 2MM HOMEPAGE ENGL.JPG

Transmission spectrum-2

MgF2 englisch

NOTICE: While we endeavour to ensure that the information on this Website is correct, we do not warrant the accuracy and completeness of the material on this Website.