|Download BaF2 (Barium Fluoride) Datasheet (PDF, 252 KB)|
BaF2 (Barium Fluoride) is widely used material in UV and IR spectroscopy due to the transmission in range from 0.2 to 11μm. It is very sensitive to mechanical and thermal shock. Can be used in IR laser applications. Barium Fluoride is less resistant to water than Calcium Fluoride but still can be used up to 800°C in dry air.
Tab.1. Typical specification of BaF2 optical components
|Sizes||See table in the article Plane Windows and Wedged Windows||Up to 150 mm|
|Diameter tolerance, mm||+0/-0.25||RFQ|
|Thickness tolerance, mm||±0.25||RFQ|
|Thickness matching, mm||—||RFQ|
|Surface quality, scr/dig||60/40||20/10|
|Surface flatness, λ @ 633nm per inch*||2||1/4|
|Parallelism (wedge tolerance)||5 arc min||5 arc sec|
* For “thick” windows: while Diameter/Thickness ratio ≤8
Fig. 1. The measurements were carried out on Perkin Elmer Lambda-35 spectrophotometer and on BrukerVertex-70 Fourier-spectrometer.
Tab.2. Refractive index
Tab.3. Optical properties
Tab.4. Physical and mechanical properties
Tab.5. Chemical stability / Solubility
Please pay your attention that this article is for your information only. We do not supply BaF2 in ingots as well as semi-finished products. Our standard products are polished parts.
For further information on our BaF2 optical components please see the following: Windows for IR-spectroscopy, FTIR Beam Splitter, Packaging or fill in our request form.