Tetragonal Optical Crystals / MgF2 Window Suitable For Excimer Lasers Deep UV

Basic Information
Place of Origin: China
Brand Name: CRYLINK
Certification: Iso9001
Model Number: CRYLINK-MgF2 Crystal
Minimum Order Quantity: 1 Pieces
Price: negotiation
Packaging Details: Carton
Delivery Time: 3-4 weeks
Payment Terms: TT
Supply Ability: 100 pieces /month
Detail Information
Crystal Type: Tetragonal Lattice Constant,: A=4.6, C=3.06
Density, G/cm3: 3.177 Melting Point,℃: 1255
High Light:

Tetragonal Optical Crystals


MgF2 Optical Crystals


Mgf2 Crystal

Product Description


Magnesium Fluoride (MgF2) is commonly used for UV windows, lenses and polarisers. It is also useful in its transmission range for some IR spectroscopy applications for wavelength from 110nm to 7.5 um. It also has a large resistance to mechanical and thermal shock. 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. Magnesium Fluoride or MgF2 is grown by vacuum Stockbarger technique in ingots approximately 120mm in diameter


  • >50% Transmission at 120 nm

  • Transmission ≥94% for= 200 nm - 6 m

  • Suitable for Excimer Lasers and Other Deep UV Applications


  • Glan Prisms
  • High Energy WavePlate
  • Achromatic Lens
  • HDTV camera lens

Physical and chemical Properties

Property Value
Chemical formula MgF2
Crystal structure Cubic
Lattice parameters 4.64Å
Density 3.18g/cm3
Melting Point 1255°C
Refractive Index n=1.387 @1.0 μm
Thermal Conductivity (W/(℃.cm)) 0.08@25°C
Thermal Expansion 13.7
Specific Heat/ (J·kgm-1·K-1) 1003
Hardness (Mohs) 6
Orientation [111] < ±0.5°
Poisson Ratio 0.27
Expanding coefficient(10-6/℃) 8.48
Absorption coefficient at 2.7um (cm-1) 40 x 10-3 cm-1


Surface Flatness <λ/8 @632nm
Clear Aperture >90%
Orientation Tolerance <0.5°
Length/Aperture Tolerance ±0.05 mm
Parallel 5”
Perpendicular 3’
Surface Quailty 10/5(Scratch/Dig)
Chamfers <0.2×45°
Wavefront Distorsion <λ/4@632 nm


Contact Details

Phone Number : +8618699681379