Specifications:

Material: Silicon (Si) Single Crystal
Diameter Tolerances. +.000” -.005”
Thickness: ±.010”
Figure: 1/40 wavelength @ 10.6 µm
Parallelism: < 3 minutes of arc
Surface Quality: 20/10 scratch ­ dig Laser Finish

Spectral Performance:

Series TR Turning Mirrors Silicon Total Reflector
Coated: Reflectance > 99.8% highly @ 10.6 µm
Operation at normal incidence (0°)
Reflectance: > 85% average for .633 µm and .650 µm
Absorption: < .20% @ 10.6 µm

Clear Aperture: 90% of diameter