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All Products / Laser Optics / Laser Windows / Laser Line Windows / λ/10 Ultra-Low Reflectivity Windows
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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

25.4mm Dia., 343nm, λ/10 Ultra-Low Reflectivity Window

λ/10 Ultra-Low Reflectivity Windows

λ/10 Ultra-Low Reflectivity Windows

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Angle of Incidence (°):
0
Bevel:
Protective as needed
Clear Aperture CA (mm):
22.86
Coating:
Laser Ultra V-Coat (343nm)
Coating Specification:
Rabs <0.10% @ 343nm
Diameter (mm):
25.40 +0.00/-0.10
Thickness (mm):
6.35 ±0.20
Design Wavelength DWL (nm):
343
Parallelism (arcmin):
<3
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Fused Silica (Corning 7980)
Fused Silica Grade:
7980 0F
Surface Flatness (P-V):
λ/10
Surface Quality:
10-5
Type:
Laser Line Window
Young's Modulus (GPa):
73
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
Index of Refraction nd:
1.458
Poisson's Ratio:
0.16
Abbe Number (vd):
67.8
Edges:
Fine Ground
Damage Threshold, By Design: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification.
7.5 J/cm2 @ 343nm, 20ns, 20Hz

Regulatory Compliance

RoHS 2015:
Compliant
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Reach 219:
Compliant
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Certificate of Conformance:
View
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Product Family Description

  • <0.1% Reflectivity Laser Line Coatings
  • Nd:YAG and Yb:YAG Wavelength Options
  • Reduce Typical Laser System Losses by 3% (Compared to a 0.25% Specified System with 10 Transmissive Optics)
  • Increased Transmission Reduces Back Reflections, Ghost Images, and Stray Light

TECHSPEC® λ/10 Ultra-Low Reflectivity Windows feature anti-reflection coatings with reflection lower than 0.1% at the design wavelength. These windows feature high quality fused silica substrates with λ/10 surface flatness and 10-5 surface quality to minimize scatter. With ultra-low reflectivity and high damage thresholds, these windows are ideal for integration into laser systems to virtually eliminate surface reflections. TECHSPEC λ/10 Ultra-Low Reflectivity Windows are available in a range of laser V-Coats from 266nm to 1064nm for compatibility with Nd:YAG and Yb:YAG laser sources. Imperial diameter sizes from 12.7mm to 50.8mm are available.