MgF2 optical components
SINOPTIX supplies various optical components made of optical grade magnesium fluoride. MgF2 is a crystal material with excellent optical and mechanical properties. It is often used in high power UV lasers optical systems.
Magnesium Fluoride characteristics
MgF2 properties chart
| Material denomination | Magnesium Fluoride |
| Chemical formula | MgF2 |
| Refractive index
(birefringent material) |
@200nm no=1.423 ne=1.437
@640nm no=1.377 ne=1.389 @ 3µm no=1.36 ne=1.371 |
| Transmission range | 130nm to 8µm |
| Density | 3.148 g/cm3 |
| Hardness | 415 Knoop (MOHS 6) |
| Young’s modulus | 138.5 GPa |
| Thermal expansion | 13.7*10-6 °K-1 on C-axis
8.9°*10-6 °K-1 perpendicular to C axis |
| Thermal conductivity | 21 W/(m*°K) |
| Melting point | 1255 °C |
MgF2 is harder than CaF2 and therefore a more resistant material to harsh working conditions.
Please visit our complete guide on UV optics.
MgF2 optical components manufacturing capabilities
Manufacturing capabilities
| Properties | Values |
|---|---|
| Available dimensions | up to D160mm |
| Dimensional tolerances | +/-0.01mm |
| Thickness | 1-50mm |
| Surface quality | S&D : 20/10 normal quality; 10/5 high quality |
| Orientation | <111>,<110> or <100> |
| Parallelism | better than 10″ |
| Coatings | AR / BBAR |
MgF2 components references :
Available MgF2 components
We can propose below kinds of optical components :
- MgF2 windows
- MgF2 lenses
- MgF2 prisms
- MgF2 wafers
Different grades of material may be offered, please specify your application when requesting a quote.