Fused Silica Window is extremely good transparency from UV to IR. It has a low coefficient of thermal expansion and huge resistance to thermal shock over large temperature excursions used silica is chemically inert and will not react with a range of compounds with the exception of hydrofluoric acid. Such durability makes it ideal for harsh environments or when used as a laboratory tool. Fused silica windows are used in many industries including aerospace, astronomy, military and commercial avionics, medical and scientific instrumentation, academics and research, as well as industrial applications. They are a great choice for laser applications, spectroscopy, photolithography, vacuum windows, and many other numerous applications
Germanium (Ge) monocrystal windows are used in precision optical and infrared laser systems. Germanium is a very hard and high-density material. With a variety of optical coatings, these windows are widely used in infrared detectors and infrared imaging systems. Most manufacturers provide custom made germanium windows according to drawings or samples and they can be coated with a far-infrared AR coating and DLC coating. These windows are used for reference surfaces, defense surfaces, medical and life sciences.
