Product added to cart
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

12.7mm Dia., 515nm, λ/10 Ultra-Low Reflectivity Window

λ/10 Ultra-Low Reflectivity Windows

λ/10 Ultra-Low Reflectivity Windows

Stock #11-251 Clearance In Stock
Quantity Selector - Use the plus and minus buttons to adjust the quantity. +
Qty 1+
Volume Pricing
Request Quote
Get Product Downloads
Angle of Incidence (°):
Protective as needed
Clear Aperture CA (mm):
Laser Ultra V-Coat (515nm)
Coating Specification:
Rabs <0.10% @ 515nm
Diameter (mm):
12.70 +0.00/-0.10
Thickness (mm):
6.35 ±0.20
Design Wavelength DWL (nm):
Parallelism (arcmin):
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):
Surface Quality:
Laser Line Window
Young's Modulus (GPa):
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):
Index of Refraction nd:
Poisson's Ratio:
Abbe Number (vd):
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.
10 J/cm2 @ 515nm, 20ns, 20Hz

Regulatory Compliance

RoHS 2015:
Reach 219:
Certificate of Conformance:

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.