Infrared glass Silicon and Germanium supplier

Product

Posting date : Jun 27, 2018

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Membership

Free Member Scince Jun 27, 2018

FOB Price

Min. Order Quantity

500 Pieces

Supply Abillity

in stock

Port

Ningbo

Payment Terms

Package

standard

Keyword :

Infrared Glass

Category

Contact

Nancy Wang

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Product Detail

Company Info

Quick Detail

Place of Origin

China [CN]

Brand Name

CHANGHUI ELECTRO OPTICS CO LTD

Model Number

HS-CODE

Package & Delivery Lead Time

Package

standard

Detailed Description

1. Silicon Usually we are handling Silicon monocrystalline, CZ and FZ, optical and mirror grade. Silicon (Si) is grown by Czochralski pulling techniques (CZ) and contains some oxygen that causes an absorption band at 9 microns. To avoid this, material can be prepared by a Float-Zone (FZ) process. Optical silicon is generally lightly doped (5 to 40 ohm cm) for best transmission above 10 microns, and doping is usually boron (p-type) and phosphorus (n-type). After doping silicon has a further pass band: 30 to 100 microns which is effective only in very high resistivity uncompensated material. CZ Silicon is commonly used as substrate material for infrared reflectors and windows in the 1.5 - 8 micron region. The strong absorption band at 9 microns makes it unsuitable for CO2 laser transmission applications, but it is frequently used for laser mirrors because of its high thermal conductivity and low density. Application as window, lens in the 1.5 - 8 μm region; Mirror for CO2 laser and spectrometer applications. 2. Germanium Germanium (Ge) is the preferred lens and window material for high performance infrared imaging systems in the 8–12 μm wavelength band. 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.