VUV Region Transmittance 633nm LiF Fluoride Crystal

Basic Information
Place of Origin: china
Brand Name: CRYLINK
Certification: Iso9001
Model Number: CRYLINK- LiF Fluoride Crystal
Minimum Order Quantity: 1
Price: negotiation
Packaging Details: Carton
Delivery Time: 3-4 weeks
Payment Terms: T/T
Supply Ability: 10000 pieces /month
Detail Information
Orientation: [100]< ±0.5° Crystal Structure: Cubic (NaCl)
Density: 2.639 G/cm3 Refractive Index: No = 1.37327@2.5µm, 1.624@0.12 µm
High Light:

LiF Fluoride Crystal


LiF Single Crystal


633nm LiF Crystal

Product Description

LiF Optical Crystal




Lithium fluoride (LiF) crystal has excellent VUV region transmittance. It is used for windows, prisms, and lenses in the visible and infrared in 0.104μm-7μm. LiF single crystal is sensitive to thermal shock and would be attacked by atmospheric moisture at 400°C. In addition irradiation produces color centers. Modest precautions should be taken against moisture and high energy radiation damage. Besides LiF softens at 600°C and is slightly plastic that can be bent into radius plates. The material can be cleaved along (100) plane and less commonly (110) plane. The optical characteristics are good and yet the structure is not perfect and cleavage is difficult. For good structure LiF is less commonly grown by the Kyropoulos method (air-grown) specifically for monochromator plates. High quality LiF is usually grown by modified Bridgman method.




  • Tends to create color centers
  • Max temperature for application:400°C
  • Excellent VUV region transmittance
  • Sensitive to thermal shock



  • X-ray monochromator plates
  • Optical material for VUV applications
  • Windows, prisms, and lenses


Orientation [100]< ±0.5°
Angle Tolerance < 0.5°
Parallelism <20〞
Surface Quality 10-5 (MIL-O-13830A)
Wavefront Distortion <λ/4@633 nm
Surface Flatness <λ/8 @633 nm
Clear Aperture >90%
Chamfer Technological for protection from
edge cracks
Thickness/Diameter Tolerance ±0.05 mm
Crystal Structure Cubic (NaCl)
Lattice Constants 4.026
Density 2.639 g/cm3
Melting Point 870°C
Thermal Conductivity /(W·m-1·K-1@314k) 4.01
Specific Heat Capacity/ (J·kg-1·K-1) 1562
Thermal Expansion /(10-6·K-1@283k ) 37
Hardness (Knoop) 102-113@600g
Young`s Modulus /(1011dyne cm-2) 6.5-7.6
Elastic Coefficient C11=112; C12=46; C44= 63.5
Apparent Elastic Limit/ MPa 11.2@1620 psi
Cleavage -100
Transmission Range 0.105 … 6 µm  
Refractive Index   no = 1.37327@2.5µm, 1.624@0.12 µm  
Reflective Loss  4.4% @4.0 µm  
Poisson Ratio 0.326
Absorption Coefficient/cm-`1  0.74×10-3@2.7µm

VUV Region Transmittance 633nm LiF Fluoride Crystal 0 VUV Region Transmittance 633nm LiF Fluoride Crystal 1

Contact Details

Phone Number : +8618699681379