Germanium wafer is customs against the requirements. Its sources can be monocrystal germanium and polycrystal, which are all optical crystals. Optical germanium crystal own great permeation performance at wave length between 2-14μm. They have good chemical stability, corrosion resistance and machinability, which get wide applications in windows and lens of thermal imagery system.
It can process into disk, rectangular piece, window, lens, prism and other special shapes.
Diameter of monocrystal germanium wafer can reach 300mm
Diameter of polycrystal germanium wafer can reach 380mm