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Home > News > Germanium Substrate of Optical Grade
Xiamen Powerway Advanced Material Co.,Ltd., a leading supplier of Germanium Substrate materials and other related products and services, can provide Germanium Substrate of Optical Grade in different size. And now PAM-XIAMEN offer specification as follows:

 

 

SL.No

Material Specifications:

1

Crystalline Form :

Polycrystalline

2

Conductivity Type :

n-type

3

Absorption Coefficient, at 25°C

0.035cm-1 max @ 10.6µm

4

Typical Resistivity :

3-40 ohm-cm

5

Density :

5.3 g/cc

6

Mohs Hardness :

6.3

7

Oxygen Content :

< 0.03 ppm

8

Holes and Inclusions:

<0.05 mm

9

Poisson Ratio :

0.278

10

Youngs Modulus (E) :

100 Gpa

 

SL.No

Optical Properties:

 

1

dn/dt  from 250-350 K :

4 X 10-4 K-1

2

Transmission at 25°C @10.6 µm wavelength

 

 

for uncoated sample of thickness 10mm :

Max. 47% or more

3

Refractive Index @ 10.8 µm :

4.00372471±0.0005

4

 Inhomogeneity of the Index :

2 X 10-4

                                                                                                                                                                            

SL.No

Thermal Properties

 

1

Melting Point (K) :

1210.4

2

Heat Capacity @ 300K (J/kg.K):

322

3

Thermal Conductivity @293 K :

59 Wm-1 K-1

4

Coefficient Thermal Expansion @ (20°C) (10-6 K):

5.8

 

 

For more information, please visit our website:www.powerwaywafer.com, send us email at sales@powerwaywafer.com  or powerwaymaterial@gmail.com