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

Categories Optical Crystals
Place of Origin: China
Brand Name: CRYLINK
Certification: Iso9001
MOQ: 1 Pieces
Price: negotiation
Packaging Details: Carton
Delivery Time: 3-4 weeks
Payment Terms: TT
Supply Ability: 100 pieces /month
Model Number: CRYLINK-MgF2 Crystal
Crystal type: tetragonal
Lattice constant,: a=4.6, c=3.06
Density, g/cm3: 3.177
Melting point,℃: 1255
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Tetragonal Optical Crystals / MgF2 Window Suitable For Excimer Lasers Deep UV

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

Features:

  • >50% Transmission at 120 nm

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

  • Suitable for Excimer Lasers and Other Deep UV Applications

Application

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

Physical and chemical Properties

PropertyValue
Chemical formulaMgF2
Crystal structureCubic
Lattice parameters4.64Å
Density3.18g/cm3
Melting Point1255°C
Refractive Indexn=1.387 @1.0 μm
Thermal Conductivity (W/(℃.cm))0.08@25°C
Thermal Expansion13.7
Specific Heat/ (J·kgm-1·K-1)1003
Hardness (Mohs)6
Orientation[111] < ±0.5°
Poisson Ratio0.27
Expanding coefficient(10-6/℃)8.48
Absorption coefficient at 2.7um (cm-1)40 x 10-3 cm-1

Polishing

Surface Flatness<λ/8 @632nm
Clear Aperture>90%
Orientation Tolerance<0.5°
Length/Aperture Tolerance±0.05 mm
Parallel5”
Perpendicular3’
Surface Quailty10/5(Scratch/Dig)
Chamfers<0.2×45°
Wavefront Distorsion<λ/4@632 nm

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