Magnesium Fluoride (MgF2) Windows

Magnesium Fluoride (MgF2) Windows offer excellent broadband transmission from the deep-UV to the mid-infrared. DUV transmission makes them ideal for use at the Hydrogen Lyman-alpha line and for UV radiation sources and receivers, as well as excimer laser applications. MgF2 is a rugged material resistant to chemical etching, laser damage, and mechanical and thermal shock. It has a Knoop Hardness of 415 and index of refraction of 1.38.

Specifications:
 
Material: Magnesium Fluoride single crystal
Orientationplease specify
Diameter Tolerance: +0.0, -0.1mm
Thickness Tolerance: ±0.1mm
Clear Aperture: >85%
Parallelism: 3 arc minute
Surface Quality: 60-40 scratch and dig
Wavefront Distortion: per 25mm @633mm
Bevel: Protective ( <0.2mm x 45° )
Coating: Optional
 
Standard MgF2 Window
 
Round Shape:
Φ10x1  Φ12.7x1 Φ20x2  Φ25x1  Φ25.4x3  Φ30x2  Φ30x3  Φ38.1x3
 
Note for MgF₂ Window:
(1). Please specify the cutting direction when ordering
(2). Custom-made MgF2 windows at any size are available.
Besides round, MgF2 windows at shape of quadrate, triangular, or other polygonal are available. 
(3). Thickness from 1.0mm to 80.0 mm is available.
(4). Better bevel is available upon request.