Gold Member Since 2016
Audited Supplier
Qinhuangdao Intrinsic Crystal Technology Co., Ltd.

Semiconductor Raw Material Pure Semi-Metal Ge 4n, Standard & Custom Germanium Crystals, Germanium Materials manufacturer / supplier in China, offering Raw Material Pure Semi-Metal Ge 4n Germanium Wafer Raw Material, Single Layer Mgf2 Anti-Reflective Coatings, Multilayer Anti-Reflective Coatings and so on.

(/ )

Supplier Homepage Product windows & prism Others windows & prism Raw Material Pure Semi-Metal Ge 4n Germanium Wafer Raw Material

Raw Material Pure Semi-Metal Ge 4n Germanium Wafer Raw Material

FOB Price: US $20-60 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $20-60/ Piece
Get Latest Price
Port: Beijing, China
Production Capacity: 5000
Payment Terms: T/T, Western Union

Request a custom order and have something just for you!

Send Customized Request
Basic Info
  • Model NO.: 1inch~8 inch
  • Type: Ignot
  • Shape: Ball, Hemisphere
  • Lenses Color: Grey
  • Customized: Customized
  • Trademark: ICC
  • HS Code: 9001909090
  • Usage: Optical
  • Transmittance: >95%
  • Material: Semiconductor Raw Material Pure Semi-Metal
  • Certification: RoHS, SGS, ISO9001
  • Coating: Unpolish
  • Origin: Qinhuangdao China
Product Description
Raw Material Pure Semi-Metal Ge 4n Germanium Wafer Raw Material
Germanium (Ge) is the preferred lens and window material for high performance infrared imaging systems in the 8-12 μm wavelength bands. Its high refractive index makes Ge ideal for low power imaging systems because of minimum surface curvature. Chromatic aberration is small, often eliminating the need for correction.   Germanium is most widely used for lenses and windows in IR systems operating in the 2μm-12μm range. Germanium is a high index material that is used to manufacture Attenuated Total Reflection (ATR) prisms for spectroscopy. Its refractive index is such that germanium makes an effective natural 50% beamsplitter without the need for coatings. It is also used extensively as a substrate for production of optical filters. Germanium covers the whole of the 8-14 μm thermal bands and is used in lens systems for thermal imaging. It can be AR coated with diamond producing an extremely tough front optic. Physical and optial properties:

Raw Material Pure Semi-Metal Ge 4n Germanium Wafer Raw Material
Gearmanium raw material

 

  • Czochralski (CZ) grown material
    • Custom grades - as specified
    • Optical grade (>99.99999%)
    • Solar grade (>99.999%)
  • Crystal structure
    • Single crystal
    • Poly‐crystal
  • Orientation  ,
  • Dopant
    • N‐type (Antimony)
    • P‐type (Gallium)
  • Resistivity
    • Standard optical requirements
    • Custom grows (0.005-500 Ω‐cm)
    • Undoped
Raw Material Pure Semi-Metal Ge 4n Germanium Wafer Raw MaterialRaw Material Pure Semi-Metal Ge 4n Germanium Wafer Raw Material
Physical properties:
Material: Germanium
Bevel: 0.25x45deg
Diameter Tolerance:+0.00,-0.15mm(Standard). +0.00,-0.05mm(Precision)
Thickness Tolerance:+/-0.1mm
Flatness: lambda/2 at 632.8nm
Surface Quality:60-40 S/D
Paraxial Focus Length +/-2%
Centration:< 10 arc minutes
Clear Aperture:>85% of diameter
 
Transmission Range :1.8 to 23 μm (1)
Refractive Index :4.0026 at 11 μm (1)(2)
Reflection Loss :53% at 11 μm (Two surfaces)
Absorption Coefficient :<0.027 cm-1 @ 10.6 μm
Reststrahlen Peak :n/a
dn/dT :396 x 10-6 /°C (2)(6)
dn/dμ = 0 :Almost constant
Density :5.33 g/cc
Melting Point :936 °C (3)
Thermal Conductivity :58.61 W m-1 K-1 at 293K (6)
Thermal Expansion :6.1 x 10-6/°C at 298K (3)(4)(6)
Hardness :Knoop 780
Specific Heat Capacity :310 J Kg-1 K-1 (3)
Dielectric Constant :16.6 at 9.37 GHz at 300K
Youngs Modulus (E) :102.7 GPa (4) (5)
Shear Modulus (G) :67 GPa (4) (5)
Bulk Modulus (K) :77.2 GPa (4)
Elastic Coefficients :C11=129; C12=48.3; C44=67.1 (5)
Apparent Elastic Limit :89.6 MPa (13000 psi)
Poisson Ratio :0.28 (4) (5)
Solubility :Insoluble in water
Molecular Weight :72.59
Class/Structure :Cubic Diamond, Fd3m
 Raw Material Pure Semi-Metal Ge 4n Germanium Wafer Raw Material
 
Refractive Index and Optical Transmittance curve----
  Refractive Index(No = Ordinary Ray):
 
µm   Noµm   Noµm   No
2.058   4.1022.153   4.09192.313   4.0786
2.437   4.07082.577   4.06092.714   4.0562
2.998   4.04523.303   4.03694.258   4.0216
4.866   4.0176.238   4.00948.660   4.0043
9.720   4.003411.04   4.002612.00   4.0023
13.02   4.0021
  Optical Transmittance Curve of Ge (Reference Data):
 Raw Material Pure Semi-Metal Ge 4n Germanium Wafer Raw Material
Send your message to this supplier
Avatar
Miss Lisa (shuaijie.hou)
Sales engineer
*From:
To: Miss Lisa (shuaijie.hou)
*Message:

Enter between 20 to 4,000 characters.

This is not what you are looking for? Post a Sourcing Request Now

Find Similar Products By Category