Germanium

Germanium (Ge)

Both monocrystal and polycrystal Germanium (Ge) are available. Germanium windows, Germanium lenses and Germanium prisms can be made according to your specifications, with the diameter up to 300mm for monocrystal and 380mm for polycrystal.

 

 

Material Specifications

Purity :                   ﹥99.9999%

Crystal Structure :   Monocrystalline & Polycrystalline

Conductive Type :  N-type

Orientation :            <111>

Typical Resistivity :5-40 Ohm-cm

  

Product Specifications

Diameter :               5-∮300mm (mono)/380mm (poly)                 

Flatness :                20μm

Perpendicularity :    ﹤5'

Bevel :                    0.2 ~ 1mm

Edge.Chips :           ≤0.5mm

ETV:                      ≤0.05mm

   

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Infrared Optics
Infrared optical materials
IR Optical Materials
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+1-403-8000736

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Coating :

a) AR coating at 10.6 , T≥99%

b) BBAR coating for 8~12 , R<1%

c) DLC coating for 8~12 , Tave≥92%

 

Tolerance :  

Diameter: +/- 0.025mm

Length & Width: +/- 0.05 ~ +/-0.1mm

Thickness:+/- 0.025mm

Surface Quality :

Plano blanks: as cut

Generated lenses: D25 ~ D76

Polished windows: to customer