Brewster Window
Brewster window is uncoated substrate used in an optical system at Brewster Angle. It is used to separate the S polarization from the P polarization. Placed at Brewster's Angle the P-Polarization portion of the light will pass through the window 100%, while the S Polarization portion will be 20% reflected.
Specifications
|
Material |
BK7 or UV Fused Silica |
|
Dimension Tolerance |
+0.0/-0.2mm |
|
Thickness Tolerance |
±0.2mm |
|
Clear Aperture |
>90% |
|
Parallelism |
<10 arc seconds |
|
Surface Quality |
20/10 |
|
Wavefront Distortion |
<λ/10@633nm |
|
Chamfer |
Protected <0.5mmx45deg |
|
Coating |
None |
|
Damage Threshold |
>20J/cm2, 20ns, 20Hz, @1064nm |
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