MgF2 (Magesium Flouride) material
MgF2 (Magesium Flouride) is transparent over a extremely wide range of wavelengths .windows, lenses ,and prisms made of this materials can be used over the entire range of wavelengths from 0.12μm(vacuum ultraviolet ) to 8.0μm (infrared). High quality synthetic VUV grade MgF2 is quite expensive. Low grade MgF2 is sometimes used in the infrared but it is inferior to CaF2. MgF2 is tough and works and polishes well, but it is slightly birefringent and should be cut with the optic axis perpendicular to the plane of the window or lens.
We have all kinds of orientation, such as <111>、<110>、<100> etc.
We have all shapes of material, such as round rod、square plate、step、prism、wedge and so on.
We have all kinds of conventional plate、spherical and wedge in our stock.
We have the size of 4mm-200mm mono crystal and poly crystal materials and optical element
110 nm to 7.5 μm
>90% at 193 nm to 6 μm
No=1.37608; Ne=1.38771 (at 0.7μm)
5.2% at 0.6 μm (both surfaces)
Residual Radiation Peak
0.04 cm-1 at 2.7 μm
2.3 x 10-6 /℃ parallel c-axis
1.7 x 10-6 /℃ perpendicular c-axis
0.3 Wm-1K-1 at 300K
13.7 x 10-6 /℃ parallel c-axis
8.9 x 10-6 /℃ perpendicular c-axis
415 with 100g indenter (kg/mm2)
Specific Heat Capacity
1.87 at 1MHz parallel c-axis
1.45 at 1MHz perpendicular c-axis
Youngs Modulus (E)
Shear Modulus (G)
Bulk Modulus (K)
C11=164; C12=53; C44=33.7
Apparent Elastic Limit
49.6 MPa (7200 psi)
0.0002 g/ 100g water at 20℃