magnesium-fluoride-parallel-windows

Magnesium Fluoride Optical Windows

Specifications

Technical Specs

Material
Magnesium Fluoride
Antireflection Coating
Uncoated
Surface Flatness
λ/2 @ 632.8 nm
Surface Quality
40-20 scratch-dig
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
Thermal Expansion Coefficient
Parallel: 14 x 10^-6 K^-1 @ 310 K
Perpendicular: 8.9 x 10^-6 K^-1 @ 310 K
Thermal Limit
14-15 W m^-1 K^-1 @ 300 K

Material
Magnesium Fluoride
Antireflection Coating
Uncoated
Surface Flatness
λ/2 @ 632.8 nm
Surface Quality
40-20 scratch-dig
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
Thermal Expansion Coefficient
Parallel: 14 x 10^-6 K^-1 @ 310 K
Perpendicular: 8.9 x 10^-6 K^-1 @ 310 K
Thermal Limit
14-15 W m^-1 K^-1 @ 300 K

Resources & Downloads

Selection Guides

Optical Window Guide

Technical Notes

Optical Materials