MgF2 Optical Crystals

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Product Details



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1.High optical transmittance from vacuum UV to IR

2.Large resistance to mechanical and thermal shock

3.Chemically stable

4. A positive birefringent crystal used for polarization optics

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                                    Achromatic Lens                                                              Glan Prisms

             

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                              High Energy Waveplate                                                    HDTV Camera Lens


》More information about MgF2: 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 2.7um 40 x 10-3 cm-1

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Co(2+) concentration increased by post-annealing process.

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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          

Surface quality: >10/5           

Flatness: <λ/8 @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 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

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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

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μmNoNeμmNoNeμmNoNe
0.1137
1.7805
0.11491.742
0.11791.68
0.11981.651
0.1211.6281.6320.1301.5661.568
0.1401.50951.5230.1501.481.4940.1601.4611.475
0.1701.4481.4620.18014391.4530.1901.4311.444
0.200
1.4231.4370.2201.4131.4260.2481.4031.416
0.2571.4011.4140.2661.3991.4120.2801.3961.409
0.300
1.3931.4050.3301.3891.4020.3371.3891.401
0.3501.3871.40.3551.3861.3990.4001.3841.396
0.5461.3791.390.7001.3761.3881.0871.3731.385
1.5121.371.3822.0001.3681.3792.51.3641.375
3.0301.361.373.5711.3541.3644.0001.3491.359
4.546
1.3411.355.0001.3341.3435.5561.3241.332


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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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