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40mm Dia., 4mm Thick, UV-VIS Coated λ/10 Fused Silica Window

Stock #48-068
€180.00
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Qty 1-5
€180.00
Qty 6
€144.00
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Abbe Number (vd):
67.8
Clear Aperture (%):
80
Diameter (mm):
40.00
Dimensional Tolerance (mm):
+0.00/-0.20
Thickness (mm):
4.00
Coating:
UV-VIS (250-700nm)
Coating Specification:
Rabs ≤1.0% @ 350 - 450nm
Ravg ≤1.5% @ 250 - 700nm
Coefficient of Thermal Expansion CTE (10-6/°C):
0.52
Density (g/cm3):
2.2
Index of Refraction nd:
1.458
Parallelism (arcsec):
<5
Poisson's Ratio:
0.16
Surface Quality:
20-10
Thickness Tolerance (mm):
±0.10
Transmitted Wavefront, P-V:
λ/10
Type:
Protective Window
Typical Energy Density Limit:
3 J/cm2 @ 355nm, 10ns
5 J/cm2 @ 532nm, 10ns
Wavelength Range (nm):
250 - 700
Young's Modulus (GPa):
73
Knoop Hardness (GPa):
522

Regulatory Compliance

RoHS 2015:
Reach 209:

Product Family Description

  • UV, Visible, and NIR Anti-Reflection Coated Versions Available
  • High Tolerance for Precision Applications
  • Sizes Ranging from 5 - 75mm Diameters
  • or λ/4 UV Fused Silica Windows Also Available

Our precision TECHSPEC® λ/10 UV Fused Silica Windows feature laser-grade surface quality and parallelism. In addition, these windows will limit the transmitted wavefront distortion to λ/10. Available uncoated, or with anti-reflection coatings optimized for the UV or visible spectrum, the superior transmission characteristics and excellent thermal properties combined with high tolerance manufacturing specifications make these windows an excellent choice for more demanding applications.

UV FS Transmission Curve
UV FS Transmission Curve

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