Barium Fluoride (BaF₂) Windows

Barium Fluoride (BaF₂) Windows

  • Knoop Hardness (kg/mm2): 82
  • Parallelism (arcmin): <3
  • Poisson’s Ratio: 0.343
  • Young’s Modulus (GPa): 53
  • Surface Quality: 60-40
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What are Barium Fluoride (BaF₂) Windows?

Barium Fluoride (BaF₂) Windows and glass are common optical components widely used in ultraviolet (UV), visible, and infrared (IR) spectral ranges.

With excellent transmission from 150 nm to 12 µm, BaF₂ windows are highly suitable for applications requiring broad wavelength coverage.

People often choose them in spectroscopy, laser systems, infrared imaging, and high-energy physics experiments.

The windows can be used in a dry environment up to 800°C, but long exposure to a humid environment will reduce the transmission rate within the ultraviolet range.

Advantages：

 

  • Wide transmittion range: Covers deep UV to long-wave infrared.
  • Low Absorption:  The window provides high optical clarity and minimal absorption in critical wavelength regions.
  • Radiation Resistance: BaF₂ is resistant to radiation damage, making it reliable for harsh environments. But it is necessary to avoid prolonged exposure to a humid environment.
  • Low Refractive Index: The windows can reduce the need for anti-reflective coatings in certain applications.
  • Customizable coating: People can choose different coatings to meet specific optical requirements.

Applications of BaF₂ Windows

 

  • Spectroscopy:For its broad transmission properties and minimal absorption, people often ust them in UV and IR spectroscopy.
  • Infrared Imaging:Suitable for thermal cameras, IR detectors, and missile guidance systems.
  • Laser Systems:Applied as protective windows in high-power laser systems and UV laser optics.
  • Astronomy and Space Research:The windows have well radiation resistance and wide spectral performance.
  • Medical and Scientific Instruments:Imaging systems, optical sensors, and diagnostic equipment.

 

  

BaF2 windows are the most resistant optical fluoride to high-energy radiation, but feature lower UV transmittance.

Chenyu employs advanced production technologies to offer you high-quality barium fluoride windows.

We offer customized services.

If you have any need for windows, please feel free to contact us at any time, or check out our other window products.

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