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Calcium Fluoride CaF2 Crystal Substrates– MSE Supplies LLC

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Calcium Fluoride CaF<sub>2</sub> Crystal Substrates - MSE Supplies LLC

Calcium Fluoride CaF2 Crystal Substrates

SKU: SU2201

  • $ 6595
  • Save $ 800

Calcium Fluoride Crystal Substrates and Wafers Properties

Chemical Formula

CaF2
CAS Number 7789-75-5
Crystal Structure Cubic

Lattice Constant

5.462 A
Crystal Orientation (100), (111), (110)
Size

10x10x0.5mm, 10x10x1.0mm, 1 inch diameter, 2 inch diameter, other sizes are available upon request
Surface Polish

Single side polished (SSP) or Double side polished (DSP)

Molecular Weight

78.075 g/mol

Appearance

colorless solid

Melting Point

1360 °C

Boiling Point

2533 °C

Density

3.18 g/cm3

Solubility in H2O

0.015 g/L (18 °C)
0.016 g/L (20 °C)

Poisson's Ratio

0.26

Specific Heat

854 J-kg/m-K

Thermal Conductivity

9.71 W/m-K

Thermal Expansion Coefficient

18.85 x 10-6 /K

Young's Modulus

75.8 GPa

Refractive Index

1.4338

 Applications of CaF2 crystal substrates and wafers

Calcium fluoride crystal is used to manufacture optical components such as windows and lenses, used in thermal imaging systems, spectroscopy, telescopes, and excimer lasers. CaF2is transparent over a broad range from ultraviolet (UV) to infrared (IR) frequencies. Its low refractive index reduces the need for anti-reflection coatings. Its insolubility in water is convenient as well.