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76.2mm Dia., 6mm Thick, Uncoated, ISP Optics IR Fused Silica Window | QI-W-76-6

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Abbe Number (vd):
67.8
Bevel:
Protective as needed
Clear Aperture (%):
85
Clear Aperture CA (mm):
64.77
Diameter (mm):
76.20 +0.00/-0.13
Thickness (mm):
6.00 ±0.13
Coating:
Uncoated
Coefficient of Thermal Expansion CTE (10-6/°C):
0.52 (+5 to +35°C) 0.57 (0 to +200°C) 0.48 (-100 to +200°C)
Density (g/cm3):
2.20
Edges:
Fine Ground
Index of Refraction nd:
1.458
Knoop Hardness (kg/mm2):
522
Parallelism (arcmin):
<3
Poisson's Ratio:
0.16
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Fused Silica
Surface Flatness (P-V):
1λ
Surface Quality:
40-20
Type:
Protective Window
Wavelength Range (nm):
200 - 3500
Young's Modulus (GPa):
73
Type of Window:
Glass
Model Number:
QI-W-76-6

Regulatory Compliance

RoHS:
Compliant
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Certificate of Conformance:
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Product Family Description

  • Excellent Thermal Stability
  • Low Auto-Fluorescence
  • IR Grade Fused Silica

ISP Optics Fused Silica Windows feature high transmission across the Ultraviolet (UV), Visible (VIS), and Infrared (IR) spectrum with IR Grade substrates extending up to 3500nm with no absorption bands. Fused Silica is a commonly used material for precision optics due to its consistent and repeatable optical performance. In addition, fused silica features a low coefficient of thermal expansion that provides high thermal stability and resistance to thermal shock. ISP Optics Fused Silica Windows provide extremely low fluorescence, making them ideal for a wide range of UV and IR laser applications.