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caf2 crystal
caf2 crystal

CaF2 Substrates

Calcium fluoride (CaF2) crystal has a wide light transmission range (good light transmission performance in the wavelength range of 0.13μm~10μm), low stress birefringence (no obvious intrinsic birefringence above 200nm), uniform refractive index, stable mechanical properties, non-deliquescent, and strong against radiation damage. It is an ideal material for making various optical windows, prisms and lenses.


OST Photonics offers high quality CaF2 substrates for researchers and industries. Crystal orientation, size and thickness can be customized according to your requirements. In addition, we can also offer CaF2 transparent ceramics with a maximum diameter of 2 inches, if you are interested in CaF2 transparent ceramics, please contact us!


Application of CaF2 Substrates


  • Infrared and ultraviolet windows, prisms and lenses

  • Laser lithography

  • High energy detection



Advantages of CaF2 Substrates


  • Good light transmission performance

  • Low stress birefringence

  • Uniform refractive index

  • Stable mechanical properties

  • Non-deliquescent

  • Strong against radiation damage



Ability of CaF2 Substrates


  • Orientation:<100>,<110>,<111>, etc.

  • Dimension: 1”, 2”, 3”, 4”, 10x10mm, 20x20mm, 30x30mm, etc.

  • Thickness: 0.5mm, 1.0mm, etc.

  • Available items: wafers, substrates, transparent ceramics, windows, prisms, blanks and customized optics



Specification and Properties of CaF2 Substrates


Crystal System

Cubic

Density

3.18 g/cm3

Melt Point

1360 ℃

Refractive Index

1.39908 at 5 um

Solubility

0.0017g/100g@20℃

Transmit Wavelengths

0.13~11.3μm

Hardness

4 Mohs

Elasticity Coefficient

C11=164, C12=53, C44=33.7

Apparent Elastic Limit

36.54 MPa

Thermal Expansion

18.85x10^-6∕℃

Orientation

<100>,<110>,<111>, etc.

Orientation Tolerance

±0.5° or better

Dimension

1”, 2”, 3”, 4”, 10x10mm, 20x20mm, 30x30mm, etc.

Dimension Tolerance

±0.1 mm or better

Thickness

0.5mm, 1.0mm, etc.

Thickness Tolerance

±0.05 mm or better

Surface Finish

Single side polished (SSP)/Double sides polished (DSP)

Package

Class 100 clean bag, Class 1000 super clean room


Contact Us
Welcome your presence, you can send us an email, we will get in touch with you within 24 hours.
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
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