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Suprasil® Windows

Suprasil® Windows

Suprasil® Windows

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  • High Transmission from 200 to 3500nm
  • <1 ppm OH Content for Minimal Absorption Losses
  • 10-5 Surface Quality and up to λ/10 TWD

Common Specifications

Bevel:
Protective as needed
Clear Aperture (%):
90
Edges:
Fine Ground
Knoop Hardness (kg/mm2):
591
Parallelism (arcsec):
<5
Poisson's Ratio:
0.17
Young's Modulus (GPa):
70
Abbe Number (vd):
67.8
Index of Refraction (nd):
1.459
Substrate:
Suprasil® 300
Surface Quality:
10-5
Transmitted Wavefront, P-V:
λ/10
Coefficient of Thermal Expansion CTE (10-6/°C):
0.51 (0 to +100°C)
0.58 (0 to +200°C)
Density (g/cm3):
2.20

Products

Dia. (mm)  Thickness (mm)   Coating   Compare   Stock Number   Price  Buy
5.00 1.00 Uncoated
10.00 1.50 Uncoated
12.50 2.00 Uncoated
20.00 2.00 Uncoated
25.00 1.00 Uncoated
25.00 2.00 Uncoated
25.00 3.00 Uncoated
25.40 1.00 Uncoated
50.00 3.00 Uncoated
5.00 1.00 NIR II (750 - 1550nm)
10.00 1.50 NIR II (750 - 1550nm)
12.50 2.00 NIR II (750 - 1550nm)
20.00 2.00 NIR II (750 - 1550nm)
25.00 1.00 NIR II (750 - 1550nm)
25.00 2.00 NIR II (750 - 1550nm)
25.00 3.00 NIR II (750 - 1550nm)
25.40 1.00 NIR II (750 - 1550nm)
50.00 3.00 NIR II (750 - 1550nm)
5.00 1.00 BBAR (1650-3000nm)
10.00 1.50 BBAR (1650-3000nm)
12.50 2.00 BBAR (1650-3000nm)
20.00 2.00 BBAR (1650-3000nm)
25.40 1.00 BBAR (1650-3000nm)
25.00 1.00 BBAR (1650-3000nm)
25.00 2.00 BBAR (1650-3000nm)
25.00 3.00 BBAR (1650-3000nm)
50.00 3.00 BBAR (1650-3000nm)

Product Details

Suprasil® Windows are constructed from high purity synthetic fused silica and provide high, flat transmission from 200 to 3500nm. Suprasil has similar mechanical properties to fused silica with the added benefit of having no absorption bands in the visible or infrared spectra, resulting in no transmission loss between 1400 - 2700nm. Compared to Infrasil®, Suprasil has lower absorption with a <1 ppm OH content, causing negligible increase in temperature from bulk absorption when used with high powered lasers. Suprasil Windows are ideal for laser material processing, medical laser applications, or applications using Nd:doped or 2 micron lasers. 

Technical Information

Transmission of Suprasil 300 compared to Corning 7980