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Home > Products > Windows > Germanium (Ge)

Germanium (Ge)
Windows for Infrared Laser


Germanium (Ge) monocrystal windows, used primarily for light in the IR region of wavelength
      from 2 to 20um, at which Ge monocrystal offers higher internal transmittance.

    Creator optics (CNCO) supply high quality Germanium windows with custom size.  All of these
     custom made Germanium windows are desighed to be used in precision optical and Infrared
     laser systems. The optical transmission is high with little or no distortion of the transmitted
     beam. The circumference is ground and both edges are no-chips beveled.

Specifications\Grade Precision Standard
Diameter Dia3mm to 300mm, customize available
Thickness 0.2mm to 50mm , customize available
Diameter Tolerance +/-0.05mm +/-0.1mm
Thickness Tolerance +/-0.025mm +/-0.05mm
Edge fine ground fine ground
Chamfer/Bevel 0.25*45°(no-chips) 0.25*45°(no-chips)
Flatness 1/8 lambda per inch @633nm 1/2 lambda per inch @633nm
Parallelism 30 arc sec 3 arc min
Surface Qulitity 20/10 60/40
Clear Aperture >85% >85%
Coating AR/AR coating at 3-5 and 8-12 microns, customize available
Material IR-Grade Germanium monocrystal (Ge) *

   * Detailed characteristics of Germanium (Ge) monocrystal.

* For more information or other materials and requests, please Contact us.


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