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Calcium fluoride(CaF2) Window

Calcium fluoride(CaF2) optical window
Material	Single crystal of Calcium fluoride(CaF2) Polycrystalline of Calcium fluoride(CaF2) Purity: >99.99%
Other Names	Calcium fluoride window, CaF2 window, CaF2 wafer, CaF2 plate
Applicable wave band	0.12um ~ 10um
Refractive Index	1.6921~1.3161 (at 0.13 μm ~ 10 μm) 1.39908 (at 5 μm)
Reflection loss	5.4% at 5μm
Absorption coefficient	7.8 x 10E-4 /cm (at 2.7μm)
Melting Point	1360℃
Thermal Conductivity	9.71 W/K.m
Kirschner Hardness	158.3
Elasticity Coefficient	C11=164;C12=53;C44=33.7
Thermal conductivity	9.71 W/m.K
Thermal expansion coefficient	18.85 x 10-6∕℃
Dielectric constant	6.76 at 1MHz
Maximum size	Diameter 100mm (Single crystal) Diameter 375mm (Polycrystalline)

Material	Standard Size	Surface quality
Calcium fluoride(CaF2) windows (Single crystal window) or (Polycrystalline window) or (Raman grade)	φ5.0mm x 1.0mm φ25mm x 1.0mm φ25.4mm x 2.0mm φ50mm x 2.0mm φ50.8mm x 6.0mm φ100mm x 2.0mm 10 x 10 x 1.0mm 75 x 25 x 1.0mm 75 x 25 x 2.0mm Or others	Polishing: Double side optical-polished or CMP-polished Roughness: Ra<1.5nm or Ra<10nm, Ra<0.5nm, Size Tolerance: +/-0.1mm Thickness Tolerance: +/-0.1mm or +/-0.05mm Parallelism: 3 minutes, 1 minute, 30 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°

Calcium fluoride (CaF2) window have a wide transmission range (good transmission in wavelength range of 0.13μm~10μm), low stress birefringence (no obvious intrinsic birefringence in >200nm), high uniform refractive index, and mechanical properties Stable, non-deliquescent, strong resistance to radiation damage, etc.,

Calcium fluoride (CaF2) is an ideal material for the production of various optical windows, prisms and lenses and other optical components.

We can customize different size and thickness of Calcium fluoride (CaF2) optical window upon requirements, such as Calcium fluoride (CaF2) round wafer, Square substrate and Cylinder, or Punch holes and other shapes.

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BIOTAIN CRYSTAL CO., LIMITED
Tel: (+86) 1506 0796 451
Fax: (+86) 0597 2212602
Email: sales@crystal-material.com
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Main office: A7, No. 501, Denggaoxi Road, Xipi street, Xinluo District, Longyan, Fujian, China

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Calcium fluoride(CaF2) Window

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