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Germanium > Window Germanium

Introduction

Used as transparent barriers for sending and receiving light between two phases under varying conditions in temperature pressure chemical composition cleanliness and phase. Germanium crystal windows used primarily for light in the infrared region of wavelengths from 2 to 20μm at which Germanium crystal offers higher internal transmittance.
 
 

Standard Specifications

  
 

Items

Specifications

Material

Germanium (Ge)

Density

5.33g/cm3

Heat Transfer Coefficient

58.6 W/m・K

Dimension Tolerance

+0.0/-0.2 mm

Thickness Tolerance

± 0.2 mm

Clear Aperture

> 90%

Parallelism

< 3 arc minutes

Flatness

λ/4 at 632.8 nm

Surface Quality

scratch and dig 60-40

Bevel

0.5 (0/-0.3) mm

Notes:

1. Surface Quality could reach 40-20

2. Parallelism such as 1’ is available.

3. Please show us the size and the coating specification.

  
   

 

Part NO.

D(mm)

t(mm)

IWG0101

30.0

3.0

IWG0102

50.0

5.0

 

  
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Window Germanium
Window Germanium
 

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