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50mm Dia. Enhanced Aluminum Coated, λ/10 ZERODUR® Mirror

Stock #39-854 In Stock
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Diameter (mm):
50.00 +0.00/-0.20
Surface Flatness (P-V):
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Back Surface:
Commercial Polish
Surface Quality:
Coating Specification:
Ravg >95% @ 450 - 650nm
Enhanced Aluminum (450-650nm)
Coating Type:
Protective bevel as needed
Clear Aperture (%):
Parallelism (arcsec):
Thickness (mm):
5.00 ±0.20
Flat Mirror
Wavelength Range (nm):
450 - 650
Coefficient of Thermal Expansion CTE (10-6/°C):
Damage Threshold, Reference: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification.
0.2 J/cm2 @ 532nm, 10ns

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
Reach 233:

Product Family Description

  • Precision ZERODUR® Substrates
  • λ/10 Flatness
  • Low Coefficient of Thermal Expansion

TECHSPEC® ZERODUR® λ/10 First Surface Mirrors are well suited for applications where temperature fluctuation is a concern. The ZERODUR® substrates have a coefficient of thermal expansion (CTE) of ±0.10 x 10-6/°C, which is an order of magnitude lower than most glass types. The low CTE allows these mirrors to have a consistent reflected wavefront, even when exposed to environments with varying temperature or illumination sources with changing intensity. TECHSPEC® ZERODUR® λ/10 First Surface Mirrors feature precision polished substrates with λ/10 flatness and 20-10 surface quality. Multiple metallic and enhanced metallic coating options are available, allowing for these mirrors to be easily integrated into applications in both the visible and infrared spectrum.