Magnesium Fluoride or MgF2is grown by vacuum Stockbarger technique in ingots approximately 160mm in diameter. It is a positive birefringent crystal with high optical transmittance from the vacuum ultraviolet to the infrared spectrum region. It is resistant to mechanical and thermal shock, to radiation, and is chemistry stable.
MgF2 transmits well into the VUV region at the hydrogen Lyman-alpha line (121nm) and beyond. It is also used for most UV optics and is excellent for eximer laser application.
Purity: 99.99%
Form: white limpidity crystal
Size: 1-4 mm granules or made per requested by customer
Physical Properties
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Crystal Structure
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Tetragonal
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crystal orientation
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<110>, <100>
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Solubility at 18°C
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0.0076g (per 100g water)
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Lattice Constant
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a=4.621; c=3.053
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Dielectric Constant
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105 ~107 Hz 5.45
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Density
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3.18g/cm3
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Mohs Hardness
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6
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Melting Point
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1255°C
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Boiling Point
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2239°C
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MoleMolecular Weight
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62.32
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Special Heat
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920 J/(kg K)
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Hardness (Knoop)
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415,576 kg/mm2
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Transparency Range
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0.12 ~ 8.5μm
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Thermal Conductivity
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3.14W/m·K
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Elastic Coefficient
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C11=140, C12=89, C44=57, C13=63, C66=96
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Fluorescence
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weak yellow upon excitation at 590 nm
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Applications
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IR, UV , DUV and VUV
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Index of Refraction
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Wavelength (nm)
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no
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ne
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Wavelength (nm)
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no
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ne
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178
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1.43975
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1.45365
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656
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1.37661
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1.38835
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|
436
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1.38203
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1.39402
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1000
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1.37964
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1.38521
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488
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1.38016
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1.39206
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2000
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1.36800
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1.37922
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546
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1.37855
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1.39039
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3000
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1.36000
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1.37060
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588
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1.37770
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1.38960
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5000
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1.33020
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1.33930
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| Packing︰ | vacuum, 1kg/bottle |
| specification︰ | 99.99% purity,1-4mm or other size |
| advantage︰ | very competitory price and high quality with quickly delivery time and good service |
| Minimum Order︰ | 1 |
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