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Barium fluoride(BaF2) window

Barium fluoride(BaF2) optical window
Material	Single crystal of Barium fluoride(BaF2) Polycrystalline of Barium fluoride(BaF2) Purity: >99.99%
Other Names	Barium fluoride window, BaF2 window, BaF2 wafer, BaF2 plate
Applicable wave band	0.15um ~ 12.5um
Refractive Index (0.2 μm ~ 12 μm)	1.5122~1.3703
Melting Point	1280℃
Thermal Conductivity	11.72 W/K.m
Kirschner Hardness	82 with 500g indenter
Elasticity Coefficient	C11=90.4;C12=40.6;C44=25.3
Thermal expansion coefficient	18.1 x 10-6∕℃
Maximum size	Diameter 50.8mm (Single crystal) Diameter 200mm (Polycrystalline)

Material	Standard Size	Surface quality
Barium fluoride(BaF2) window (Single crystal window) or (Polycrystalline window)	φ5.0mm x 1.0mm φ25mm x 1.0mm φ25.4mm x 2.0mm φ50mm x 3.0mm φ50.8mm x 1.0mm φ50.8mm x 6.0mm φ90mm x 3.5mm φ100mm x 3.0mm 10 x 10 x 1.0mm 20 x 20 x 2.0mm Or others	Polishing: Double side optical-polished or CMP-polished Roughness: Ra<1.5nm or Ra 5~10nm, Ra<0.5nm, Size Tolerance: +/-0.1mm Thickness Tolerance: +/-0.1mm or +/-0.05mm Parallelism: 1 minute, 30 seconds, 5 seconds or higher Surface Finish: 60-40, 40-20, 20-10 (scratch-dig) Surface Figure: 1/2λ, 1/4λ or higher Chamfer: 0.25mm × 45°

Barium fluoride(BaF2) window has good light transmission performance in the wavelength range of 0.15μm~12.5μm. Barium fluoride(BaF2) is an ideal material for making various optical components such as IR/UV optical windows, prisms, and lenses. Can be used for infrared distribution cabinet windows, Fourier gas analysis windows, oil and gas detection, high power lasers, optical instruments, etc. The performance of single crystal and polycrystal is basically the same,

Barium fluoride(BaF2) has excellent scintillation properties and has become an important crystalline material in the fields of high-energy physics and nuclear physics, nuclear medicine and other fields.

We can customize different size and thickness of Barium fluoride(BaF2) optical window upon requirements, such as Barium fluoride(BaF2) round wafer, Square substrate and Cylinder, or Punch holes and other shapes.

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BIOTAIN CRYSTAL CO., LIMITED
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Barium fluoride(BaF2) window

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