Material
|
UVFS, Corning7980, BK7,YAG ,Ge, ZnSe etc
|
Surface Flatness
|
≤λ/10 at 632.8 nm
|
Clear Aperture
|
≥85% of diameter
|
Surface Quality
|
10-5 scratch-dig per MIL-PRF-13830B
|
Diameter Tolerance
|
+0/-0.1 mm
|
Thickness Tolerance
|
±0.1 mm
|
Wedge
|
≤1 arc min
|
Chamfers
|
0.2mmX45°
|
Durability
|
MIL-M-48497
|
Damage Threshold
|
1064 nm: 20 J/cm2 with 10 nsec pulses, typical
532 nm: 5 J/cm2 with 10 nsec pulses, typical |