These general purpose plane windows are polished to λ / 10 flatness except where indicated otherwise. They are intended for transmissive use and are parallel to better than 10 arc seconds. Select a coating appropriate to your application or contact us with your special coating requirements.
< 20-10 both sides
If thickness >= 1.5mm : Lambda/4@ 633nm
If thickness >1.5mm : Lambda /10 @ 633nm