||Germanium dioxide is an inorganic compound. When in contact with atmospheric oxygen, a passivation layer forms on pure germanium.
||Germanium dioxide's optical dispersion properties make it a good optical material for wide angle lenses and optical microscope objective lenses.
|Optical Fibers and Wavelengths
||Germanium dioxide and silica are mixed to create an optical material for optical fibers and optical wavelengths. These mixed materials have a higher refractive index and lower viscosity.
||Germanium dioxide can be used as a catalyst. In the production of polyethylene terephthalate resin, it is used for production of select phosphors and semiconductor materials.