Barium Fluoride (BaF2) Windows

  • Useful transmission range covers 0.265-10 µm
  • Most resistant to high energy radiation among fluorides listed in this catalogue

Barium fluoride is used for optical windows, prisms and lenses transmitting from ultraviolet into infrared, it can be used as an infrared laser window or lens. BaF2 is recommended for use as a vacuum ultraviolet window where high radiation resistance is required. BaF2 is less soluble than LiF, but relatively more soluble than MgF2 and CaF2.

Delivery

Estimated delivery time: from 4 - 5 days

Diameter
Thickness
Code Diameter Thickness Price Delivery Add to cart
540-7252 ø 25.4 mm 2 mm 66 $ 4 - 5 days To cart
540-7251 ø 25.4 mm 3 mm 66 $ 4 - 5 days To cart
540-7445 ø 44.6 mm 3.5 mm 110 $ 4 - 5 days To cart
540-7503 ø 50.8 mm 3 mm 242 $ 4 - 5 days To cart
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Physical Properties

Crystal type

cubic

Density, g/cm3

5.27

Melting point, °C

1525

Refractive index @ 0.265 µm

n = 1.51217

Refractive index @ 10.3 µm

n = 1.39636

Transmission band, µm

0.135-15

 

Specifications

Material

BaF2

Surface quality

60-40 scratch & dig (MIL-PRF-13830B)

Clear aperture

90% of diameter

Diameter tolerance

+0.0 -0.25 mm

Thickness tolerance

0.2 mm

Parallelism

3 arcmin

Flatness

1 λ per inch @ 633 nm

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