This laser mirror uses common design dielectric coating, also called Bragg mirror, where all optical layer thickness values are just one-quarter of the design wavelength. This design of laser mirror leads to the highest possible reflectivity for a given number of layer pairs and given materials.
Dielectric multilayer mirrors can be made on both plane and curved surfaces.
For angled incidence of light on a dielectric mirror, the spectral range over which the mirror is highly reflective shifts toward shorter wavelengths as the angle of incidence increases.
Material: Fused Silica
Dimension Tolerance: +0.00/-0.1 mm
Surface Flatness: λ/10@633nm
Surface Quality: 10-5 or 20-10
Clear Aperture: 90% of diameter
Damage Threshold: 5J/cm2 10ns Pulse
R > 99.7% or Partial Reflection from 50% to 98%
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