sapphire windows
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sapphire windows

Availability:
  • Features Extreme Surface Hardness Chemical Resistance

  • Transmits Wavelengths Ranging From UV to Mid-Infrared

  • Thinner and Stronger than Standard Glass Windows

  • Anti-Reflection Coating Options Covering 400 - 5000nm Available

Common Specifications

Abbe Number (vd):
72.24
Axis Orientation:
Random
Bevel:
Protective as needed
Birefringence (no-ne):
0.008 for Visible Light Orthogonal to Optical Axis
Coefficient of Thermal Expansion CTE (10-6/°C):
8.8
Density (g/cm3):
3.97
Edges:
Fine Ground
Index of Refraction nd:
1.77
Knoop Hardness (kg/mm2):
1900
Poisson's Ratio:
0.27
Substrate:
Sapphire (Al2O3)
Surface Roughness (μm):
0.1 per Inch
Young's Modulus (GPa):
435


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