Magnesium Fluoride
MgF2 windows: Broadband transmission and robustness for your optical applications. Our magnesium fluoride windows offer excellent transmission in the UV and IR range and are ideal for laser applications and UV technology. They are chemically, thermally and mechanically highly resilient.
The most important facts about MgF2
Hellma Materials MgF2 crystals: Customised solutions for your optical challenges.
Magnesium fluoride (MgF2) from Hellma Materials is a proven optical material with outstanding properties:
- Broad transmission spectrum: Excellent transmission in the UV, VIS and IR range.
- Low dispersion: Minimises chromatic aberrations.
- High resistance to ionising radiation: can be used in space.
- Low non-linear refractive index: Ideal for high-power laser applications.
- Resistant to many chemical etching agents, making it suitable for demanding applications.
Thanks to these properties, our MgF2 crystals are the first choice for:
- Semiconductor industry: Microlithography optics for maximum precision.
- Vacuum technology: Robust vacuum windows for harsh environments.
- Laser technology: ideal due to extreme laser resistance
Advantages of our calcium fluoride
| Feature | Value | Advantage |
|---|---|---|
| Low refractive index | nd = 1.377 | Ideal for high-power laser applications |
| Low spectral dispersion | 𝜈d = 106.22 | Minimises chromatic aberrations |
| Outstanding laser resistance for a wide range of laser optics | 120 nm – 400 nm | Long service life of laser components |
| High, broadband transmission from the deep UV to the IR range | 120 nm to 7 µm | Excellent transmittance in the UV, VIS and IR range |
| Available size of semi-finished products | up to 250 mm | for demanding applications |
Your advantages with semi-finished products from Hellma Materials:
Flexibility in material size: Customised solutions for your specific requirements.
Optimised performance: Achieve maximum optical precision and efficiency.
Reliability: Trust in a proven material with a long service life.
Quality control: All measurement technology including laser laboratory in-house.
