Infrared Silicon Window

Silicon (Si) is usually used in the 1.2 - 7um middle wave infrared optical window and the optical filter substrate, with peak transmission at 3 - 5um. The material has good thermal conductivity and Low density which is ideal for use in weight-sensitive applications.
We provide silicon window with high quality scratch/dig, well controlled surface flatness.

Infrared Silicon Window
  • Customized silicon window
  • Diameter from 3mm to 300mm
  • Fine polished surface
  • Substrate material: Si, Ge.

Material specification

Crystal structure

Monocrystalline Silicon

Purity

>99.9999%

Orientation

<100>

<111>

Conductivity

N type (Phosphorous doped)

P type(Boron doped)

Resistivity

N type >10 ohm/cm

P type >30 ohm/cm

Manufacture limits

Diameter

5mm to 300mm

Diameter tolerance

+/-0.05

Thickness

Customized

Thickness tolerance

+/-0.05

Scratch/Dig

10/5

Flatness

<1/4 lambda within clear aperature

Parallelism

<1 arc minute

Edge side

Fine grinding

Felt polished

 

inquiry

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