Optical windows are transparent glass components that are used to transmit light of a designed wavelength range while simultaneously minimizing reflection and absorption.
They are used as a protective element between two environments and their impact on the passage of light is neutral.
N-BK7, fused silica (UV-grade, optical grade or IR-grade) and sapphire windows.
Also possible: CaF2, BaF2, MgF2, Ge, Si, ZnSe, etc.
The choice of substrate material affects not only the useful transmission wavelength range, but also such factors as pressure handling capability and thermal conductivity.
Typical materials include N-BK7, fused silica (UV-grade, optical grade or IR-grade) and sapphire windows. We will gladly provide windows from other materials such as CaF2, BaF2, MgF2, Ge, Si, ZnSe, etc.
Windows can be manufactured in almost any shape: round, rectangular, elliptical, or any other shape including cut-outs and drill holes. Holes may also be drilled at an angle to the surface normal.
Anti-reflection (AR) coatings are generally applied to both surfaces of a window to prevent back reflections, interference effects, ghost images and light loss.
In addition to simple flat windows, we also provide custom enclosure windows (“laser light houses”).
|Range of dimensions||1mm – 600mm|
|Highest available surface figure||λ/20 (DIN: 3/0,1)|
|Highest available surface quality||10-5 S/D (DIN: 5/1×0,04)|
|Highest available tolerance of beam deviation||1″ (arcsec)|