Material
   Crystal Material
   Coating Material
Opticelement
   Spherical Lense
   Cylinder Lense
   Prism
   Windows
Coating
   MIR Coating
   FIR Coating
   UV Coating
   Visible Coating
   NIR Coating
   Optical Assembly
stockproduct
   Windows
   Lenses
   Prism
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   Ad
   IR

Material


MgF2
        Magnesium Fluoride (MgF2 crystal) is used for optical elements where extreme ruggedness and durability is required. Its useful transmission range is 0.11 μm - 8.5 μm. MgF2 single crystals is a positive crystal and slightly birefringent and usually supplied with the optic axis cut perpendicular to the window faces.

Detail

 

Crystal Type

Rutile type structure

Transmission Range

0.11-7.5μm

Reststrahlen

20.0μm

Density

3.177g/cm

Melting Point

1255

Molecular Weight

62.3018

Thermal Conductivity

25.0W/(m K) @ 20K  0.3 W(m K)@ 300K

Thermal Expansion

||C: 13.710/    ^ C: 8.48 10-6/K

Hardness (Knoop)

415.6

Young’s Modulus

158.55GPa

Shear Modulus

54.66GPa

Bulk Modulus

101.32GPa

Rupture Modulus

49.0MPa

Elastic Coefficient

C=140.2

C=89.5

C=204.7GPa

Dielectric Constant

||C::4087   ^c:5.45

Solubility Water

<0.0002g / 100g @ 0-60

Cleavage Planes

(110)

Standard Diameter

140mm

Application

Scintillation material

Correction pare in lens systems

 

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