MGW12 Optical Window

The MGW12 is a 25.0 mm in diameter and 3.0 mm thick Magnesium Fluoride window. Magnesium fluoride has a wide spectral range with high transmission between 0.15 μm and 6.5 μm, making it an excellent choice for deep UV to IR applications. MgF₂ has high resistance to thermal and mechanical shock, as well as laser damage. For selected applications MgF₂ can also be used without an anti-reflective coating as it has a low index of refraction leading to a low refracted light from the second surface.

Specifications

Technical Specs

Diameter

25.0 mm
Material

Magnesium Fluoride
Antireflection Coating

Uncoated
Surface Flatness

λ/2 @ 632.8 nm
Surface Quality

40-20 scratch-dig
Thickness

3.0 mm
Thickness Tolerance

± 0.1 mm

Parallelism

< 1 arc minute
Cleaning

See How to Clean Optics
Clear Aperture

Central 90% of diameter
Diameter Tolerance

+0.0/-0.1 mm
Wavelength Range

150-6500 nm

Diameter

25.0 mm
Material

Magnesium Fluoride
Antireflection Coating

Uncoated
Surface Flatness

λ/2 @ 632.8 nm
Surface Quality

40-20 scratch-dig
Thickness

3.0 mm
Thickness Tolerance

± 0.1 mm

Parallelism

< 1 arc minute
Cleaning

See How to Clean Optics
Clear Aperture

Central 90% of diameter
Diameter Tolerance

+0.0/-0.1 mm
Wavelength Range

150-6500 nm

Resources & Downloads

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Optical Window, Magnesium Fluoride, 25.0 mm Diameter, 3.0 mm Thick