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Jiaxing AOSITE Photonics Technology Co.,Ltd.
mgf2 window
mgf2 window
magnesium fluoride window

MgF2 Window Crystals

Magnesium Fluoride (MgF2 crystals)is used for optical elements where extreme ruggedness and durability is required. Its useful transmission range is 0.12 μm - 8.5 μm. Irradiation does not lead to color centers. It is a rugged, hard material which is resistant to thermal and mechanical shock and can be worked to the highest standards. MgF2 crystal is slightly birefringent and usually supplied with the optic axis cut perpendicular to the window faces.Magnesium Fluoride (MgF2 crystals)is used for optical elements where extreme ruggedness and durability is required. Its useful transmission range is 0.12 μm - 8.5 μm. Irradiation does not lead to color centers. It is a rugged, hard material which is resistant to thermal and mechanical shock and can be worked to the highest standards. MgF2 crystal is slightly birefringent and usually supplied with the optic axis cut perpendicular to the window faces.

Application of MgF2 Magnesium Fluoride Window Crystals


  • VUV, UV, and IR optical systems

  • UV photomultiplier tubes

  • Excimer lasers

  • The optical fiber communications industry


Advantages of MgF2 Magnesium Fluoride Window Crystals


  • High optical transmittance from the vacuum ultraviolet to the infrared spectrum region(0.12~8.5μm).

  • Resistance to mechanical, thermal shock and radiation

  • Chemically stable

  • Positive birefringent crystal

  • Used for Optical prisms, lenses, wedges, windows, other optical components etc


Specifications of MgF2 Magnesium Fluoride Window Crystals


Orientation

Random or as requested

Size

Upon the customer’s request

Diameter Tolerance

+0/-0.1 mm

Thickness Tolerance

+/-0.1 mm

Aperture

>90%

Surface Quality

80/50~10/5 (S/D)

Parallelism

<1 arc minute

Chamfer

0.2-0.5mmx45°

Coating

Uncoated or upon customer’s request


Properties of MgF2 Magnesium Fluoride Window Crystals


Transmission Range

0.12 to 7 microns

Refractive Index

1.413 at 0.22 micron

Refractive Loss

5.7% at 0.22 microns

Crystal/Class Structure

Tetragonal

Cleavage Plane

(100), (110), imperfect

Density

3.18 g/cc

Hardness (Knoop)

415

Youngs Modulus

138 GPa

Shear Modulus

54.66 GPa

Bulk  Modulus

101.32 GPa

Poisson Ratio

0.276

Elastic Limit

49.6 GPa (7200psi)

Molecular Weight

62.32

Thermal Expansion

13.7 (para) 8.9 (perp) x10^-6/K

Thermal Conductivity

21 (para) 33.6(perp) W m-1K-1  at 300K

Melting Point

1255℃

Specific Heat Capacity

1003 J Kg-1K-1

Solubility

0.0002g/100g water


Technical Images of MgF2 Magnesium Fluoride Window Crystals

QQ图片20170625165846.png


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Head Office: No. 66, 8 Group, Chengbei Village, Yanguan Town, Jiaxing 314411, China;

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Head Office: No. 66, 8 Group, Chengbei Village, Yanguan Town, Jiaxing 314411, China;

Hangzhou Branch: Room 1012, Chunhua Bussiness Center, No. 159, Hangbo Street, Shangcheng District, Hangzhou 310009, Zhejiang, China
sales@ostphotonics.com; info@ostphotonics.com +86-0571-86780460