Calcium Fluoride (CaF2) Optical Wafers All Grades

university wafer substrates

Calcium Floride (CaF2) Grades

Grade Transmission Quality
Infra-Red Grade  0.40μm to 10.0μm  Medium purity
UV Grade  0.19μm to 10.0μm  High purity
VUV Grade 0.13μm to 10.0μm  Very high purity
Eximer Grade  0.13μm to 10.0μm Very high purity
Raman Grade  0.13μm to 10.0μm  Fluorescence free

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Infra-Red (IR) Grade

In the past CaF2 was mined and was inexpensive compared to other grades. But now regent grade CaF2 is used to save money.

Ultra-Violet (UV) Grade

Synthetically produced CaF2. Tranmission through Ultra Violet-Visible spectrum as well as the IR.

Vacuum Ultra-Violet (VUV)

The vacuum UV part of the spectrum extending to the theoretical limit for CaF2.

Eximer Grade

Eximer grade CaF2 is derived from pure crystal ingots of the highest purity to guarantee the best absorption of high-powered lasers.

Raman Grade 

Only certain CaF2 ingots that meet the highest quality can be deemed Raman grade.

Calcium Fluoride (CaF2) Windows

Below are just some of our CaF2 substrates that we have in stock:

  • (100), 10x10x 0.5 mm 2 Sides polished
  • (100), 10x10x 0.5 mm 1 Side polished
  • (100), 10x10x 1.0mm , 1 Side polished
  • (100), 10x10x 1.0mm , 2 Side polished
  • (111), 10x10x 0.5mm , 2 Side polished
  • (111), 10x10x 1.0mm , 1 Side polished
  • (111), 10x10x 1.0mm , 2 Side polished
  • (111), 1"x1.0 mm , 2 Side polished
  • single crystal for evaporation, purity >99.995%, 5x5x5 mm as cut


Below are just a few of our most recent CaF2 Sales.

100mm CaF2 wafers 0.5 mm thick, DSP, intrinsic.
Qty 1

100mm CaF2 wafers (100) or (111) 2mm thick DSP

Qty: 5 pcs

Sputtering Depostion

Clients use the following CaF2 specs to sputter in the TIFR lab.

Calcium Fluoride Crystal Substrates

  • CaF2, (100), 10x10x 0.5 mm 1 Side polished QTY : 10 no
  • CaF2, (111), 10x10x 0.5mm , 1 Side polished QTY : 10  no
  • CaF2, (100), 2 inch dia x 0.5 mm 1 Side polished  QTY : 1 no
  • CaF2, (111), 2 inch dia x 0.5mm , 1 Side polished  QTY : 1 no

CaF2 for FTIR

Researchers use CaF2 for Fourier-transform infrared spectroscopy (FTIR). This method obtains the infrared spectrum of absorption or emission of a solid, liquid or gas. An FTIR spectrometer simultaneously collects high-spectral-resolution data over a wide spectral range.

Material Safety Data

MSDS avaialable upon request.