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MgF2 Window

Magnesium Fluoride crystal is used as a lens, prism and window for wavelength from 110nm to 7.5μm.

The MgF2 magnesium fluoride window can penetrate well through the VUV region to 121nm and beyond.Magnesium fluoride is mainly used in UV spectra and has good applications for excimer lasers.


Product Details

Magnesium Fluoride crystal is used as a lens, prism and window for wavelength from 110nm to 7.5μm.

The MgF2 magnesium fluoride window can penetrate well through the VUV region to 121nm and beyond.

Magnesium fluoride is mainly used in UV spectra and has good applications for excimer lasers.


Feature

Full Transmission 200-6000nm,UVA,UVB,Visible,Infrared.

Orientation<001><100><110><210><111>

 

Manufacture Specification

Size tolerance:+0.00/-0.01

Surface Quality:40-20

Flatness:1/4 [email protected]

AR Coating


Curve

MgF2 Window


Optical Properties
Transmission Range110 nm to 7.5 μm
Transmittance>90% at 193 nm to 6 μm
Refractive IndexNo=1.37608; Ne=1.38771 (at 0.7μm)
Reflection Loss5.2% at 0.6 μm (both surfaces)
Residual Radiation Peak20 nm
Absorption Coefficient0.04 cm-1 at 2.7 μm
dn/dT2.3 x 10-6 /℃ parallel c-axis1.7 x 10-6 /℃ perpendicular c-axis
Physical Properties
Density3.18 g/cm3
Melting Point1255℃
Thermal Conductivity0.3 Wm-1K-1 at 300K
Thermal Expansion13.7 x 10-6 /℃ parallel c-axis8.9 x 10-6 /℃ perpendicular c-axis
Knoop Hardness415 with 100g indenter (kg/mm2)
Specific Heat Capacity1003 J/(kg.k)
Dielectric Constant1.87  at 1MHz parallel c-axis1.45  at 1MHz perpendicular c-axis
Youngs Modulus (E)138.5 GPa
Shear Modulus (G)54.66 GPa
Bulk Modulus (K)101.32 GPa
Elastic CoefficientC11=164; C12=53; C44=33.7C13=63; C66=96
Apparent Elastic Limit49.6 MPa (7200 psi)
Poisson Ratio0.276
Chemical Properties
Solubility0.0002 g/ 100g water at 20℃
Molecular Weight62.32
StructureTetragonal Crystal
Cleavage Plane(110)




TAGS: MgF2 WIndow, mgf2 optics, optical mgf2, mgf2 crystal
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