LiF Optical Crystals

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Product Details


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1. Excellent transmission from 110nm to7μm

2  Optically isotropic, middle hard

3.  Insoluable in water

4. Sensotive to thermal shock


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                               X-Ray spectroscopy                                           UV transmission Window  

》More information about LiF: Wikipedia

                 

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Low bulk absorption

High Purity raw materials >99.999%

Low bulk absorption

Advanced raw material pre-sintering process

Advanced raw material pre-sintering process

No poly-crystalline defects


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① Full automatic controlled crystal growth furnace High yield

② Advanced CZ Method Crystalline Process Stable quality control

③ Systematic batch packing classification

》More information about Equipments


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Maximum boule size >dia50mm

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Absorption coefficient at 2.7 um 0.74x10-3

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Co(2+) concentration increased by post-annealing process,high Q-switch efficiency

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High doping concentration gradient homogeneity , typical value<0.02cm-1/inch

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No bubbles, scatering point and inclusions in crystals

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No grain boundary in crystals

》More information about Crystal Growth


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High level dust-free clean room 

(1000) grade)


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2-sides polishing equipments


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AFM


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Interferometer

Advance CMP process, Ra<0.4nm          

        Grade I                                              Grade II                                              Grade III

        Surface quality: >80/50                    Surface quality:< 40/20                     Surface quality:< 60/40                                        Flatness: >λ/8                                   Flatness:  <(λ/4-λ/6) @632nm          Flatness: <(λ/2-λ/4) @632nm 

》More information about Polishing


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ZPCL1H3%D0QF71F_F5AW5GM.png       Customized coating service 

     S1,S2:AR/AR@1535-1540nm

     S1,AR@1535-1540nm,HR@940-980nm

     S1,AR@1535-1540nm

》More information about Coating


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PropertyValue
Chemical formulaLiF
Crystal structureCubic
Lattice parameters4.03Å
Density2.64 g/cm3
Melting Point870°C
Refractive Indexn=1.387 @1.0 μm
Thermal Conductivity 411.3 W/(m·K) @314 K
Thermal Expansion34.4 x 10-6 1/K @300 K
Specific Heat/ (J·kgm-1·K-1)1562J/(kg·K)
Knoop Hardness100 kg/mm2
Young`s Modulus55.14 GPa
Shear Modulus62.03 GPa
Rupture Modulus10.8 MPa
Elastic Coefficient

C11 = 112; C12 = 45.6; C44 = 63.2 GPa

Apparent Elastic Limit11.2 MPa
Dielectric Constant9.0 @25°C, f = 100...109 Hz
Solubility in Water0.27g / 100g @18°C
Debye Temperature732K
Bandgap13.6eV


Elastic Coefficient

C11 = 112; C12 = 45.6; C44 = 63.2 GPa

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PropertyValue
Spectal RangeUV, VIS, IR
Surface quality60-40 S&D
Clear aperture90% of the diameter
Diameter toleranceDiameter tolerance
Thickness tolerance±0.1
Surface flatnessλ/4 @ 633 nm
Parallelism<3 arcmin
                                                            Polishing Specification for Optical Grade I
Orientation Tolerence< 1°
Thickness/Diameter Tolerance±0.10 mm
Surface Flatness<(λ-2λ) @632nm
Wavefront Distortion<(2-4)λ @632nm
Surface Quality80/50
Parallel10’
Perpendicular60’
Clear Aperture>90%
Chamfer<0.2×45°
                                                            Polishing Specification for Optical Grade II
Orientation Tolerence< 0.5°
Thickness/Diameter Tolerance±0.10 mm
Surface Flatness<(λ/2-λ/4) @632nm
Wavefront Distortion<(1-2)λ @632nm
Surface Quality60/40
Parallel1’
Perpendicular60’
Clear Aperture>90%
Chamfer<0.2×45°
                                                            Polishing Specification for Optical Grade III
Orientation Tolerence< 0.2°
Thickness/Diameter Tolerance±0.02 mm
Surface Flatness<(λ/4-λ/6) @632nm
Wavefront Distortion<(λ-λ/2) @632nm
Surface Quality40/20
Parallel45’
Perpendicular20’
Clear Aperture>90%
Chamfer<0.2×45°

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μmNo
0.106
1.9130
0.1211.6240
0.1501.5030
0.1801.4850
0.2201.4291
0.2701.4141
0.3301.4087
0.3601.4048
0.6001.4019
0.9001.3918
2.0001.3880
3.5001.3788
5.000
1.3587


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History: 

Metalaser has engaged in crystal industry over 20 years which is one section    of Shanghai Daheng Optics and Fine Mechanics Co., Ltd held by SIOM. 

Team:     

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More than 60% of our employees are physics or material scientists from NIALT and SIOM.





》More information about our company

Alibaba Transaction History:

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We have set up a mall on the Alibaba, and there are many transaction record from all over the world.    

》Our Alibaba trade website

           

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Delivery in 3~4weeks

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Free samples can be provided

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Free ex change goods or sales return for once 

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Provides re-polished and coating

services (Coating damage only)

Note:Postage paid by the buyer

》More information about Service


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