A REVIEW OF GERMANIUM WINDOWS

Anything at all more than a hundredºC will not be advisable. By the point it reaches 200ºC it is almost opaque whatsoever wavelengths. If you need a large temperature window, you’re improved suited to stick with a material like MgF2, YAG or our outdated Buddy sapphire.Using the Knoop hardness testing strategy, germanium features a hardness of 7