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All Products / Laser Optics / Laser Windows / Laser Line Windows / λ/4 N-BK7 Laser Line 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

20mm Diameter, 532nm V-Coat, λ/4 N-BK7 Window

See More by SCHOTT Optical Components

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Stock #49-130 3-5 days
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Bevel:
Protective as needed
Clear Aperture CA (mm):
18.00
Coating:
Laser V-Coat (532nm)
Coating Specification:
Rabs <0.25% @ 532nm
Diameter (mm):
20.00 +0.00/-0.25
Thickness (mm):
3.00 ±0.20
Design Wavelength DWL (nm):
532
Parallelism (arcmin):
≤1
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
N-BK7
Surface Flatness (P-V):
λ/4
Surface Quality:
60-40
Type:
Laser Line Window
Young's Modulus (GPa):
82
Coefficient of Thermal Expansion CTE (10-6/°C):
7.1 (-30 to +70°C)
8.3 (+20 to +300°C)
Density (g/cm3):
2.51
Index of Refraction nd:
1.516
Poisson's Ratio:
0.206
Abbe Number (vd):
64.17
Edges:
Fine Ground

Regulatory Compliance

RoHS 2015:
Compliant
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Certificate of Conformance:
View
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Reach 235:
Compliant
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Product Family Description

  • <0.25% Reflection at Design Wavelength
  • Coatings Available for HeNe, Diode, and Nd:YAG Laser Sources
  • Precision N-BK7 Substrate
  • Also Available Uncoated, MgF2 Coated and VIS 0° Coated

TECHSPEC® λ/4 N-BK7 Laser Line Windows are ideally suited for industrial and low power laser applications. The high tolerance design yields minimal beam distortion and scatter. Anti-reflection coatings provide <0.25% reflection at the coating's design wavelengths.

Laser Optics