Barium Fluoride or BaF2 can be used in many applications due to its wide transmission range that goes from the deep UV to the far infrared range. BaF2's main standout is its resistance to high-energy radiation and low index of refraction of 1.48, which makes it so that AR coatings are unnecessary. While, these windows can but used in temperatures up to 800ºC, it must be in a dry environment or else the moisture will damage its transmission properties in the UV range.
Typically, BaF2 is used to detect X-rays, gamma rays and other high energy particles as it is a fast scintillator.
Firebird provides these in several uncoated stock configurations but can provide customized and coated to your specifications.
Barium Flouride (BaF2) Specs:
|Wavelength range: 200nm-12μm||Coating: Uncoated|
|Diameter tolerance: +/-0.1mm||Surface Quality: 60/40|
|Thickness tolerance: ±0.2mm||Paralellism: <3 arc minute|
|Clear Aperture: 90%||Density: 3.18g/cm3|
|Melting point: 1360ºC||Young's Modulus: (GPa): 53|
|Coefficient of Thermal Expansion: 18.1x10/ºC||Knoop Hardness: 82kg/mm2|