Parameter
|
Metal mirror
|
Dielectric mirror
|
Base material
|
K9, Quartz, silicon, aluminum, etc.
|
Parallelism
|
1'
|
Clear Aperture
|
>90%
|
Surface S1 Shape
|
Lambda/10@633nm
|
Surface S1 Quality
|
40/20
|
Surface S2
|
Polished/Matte
|
Lambda/4@633nm
|
Damage threshold
|
No
|
20J/cm2,20nsce,20Hz@1064nm
|
Surface S1 Antireflection coating
|
Center wavelength <0.2%, AOI=0°
Center wavelength <0.4%, AOI=45°
|
Incident angle
|
customized
|
Surface S2 Reflective film
|
Single point R>99.8%, AOI=0°
|
Single point R>99.4%, AOI=45°
|
Single point R>99.2%, AOI=0°
|
Single point R>99.0%, AOI=0°
|
Curvature radius tolerance
|
+/-0.5%
|