The HPFS standard grade, Corning code 7980, is a high purity synthetic amorphous silicon dioxide manufactured by flame hydrolysis. The noncrystalline, colorless, silica glass combines a very low thermal expansion coefficient with excellent optical qualities and exceptional transmittance in the ultraviolet. It is available in a number of grades for different applications.
ULE,Corning code 7972 ULtra Low Expansion Glass is a titania silicate glass with unique cbaracteristics that has made it the material of choice in applications ranging from machine tool reference blocks to solid and lightweight mirror blanks for larger astronomical telescopes and space satellite applications.Leading industry experts in the semiconductor integrated circuits manufacturing industry have identified ULE as a "material of choice" for EUV applications
Dow Electronic Materials vapor deposited zinc selenide,CVD ZINC
SELENIDE Material, is the material of choice for optical components in
high-powered CO2 lasers due to its low bulk absorption at 10.6 microns. Its
index of refraction homogeneity and uniformity offer excellent optical
performance for use as protective windows or optical elements in
high-resolution forward looking infrared (FLIR) thermal imaging equipment. This
material has also been used as small windows and lenses in medical and
industrial applications, such as thermometry and spectroscopy.
Dow Electronic Materials CVD ZINC SELENIDE Material is chemically inert,
non-hygroscopic, highly pure, theoretically dense and easily machined. It has
extremely low bulk losses due to absorption and scatter, has a high resistance
to thermal shock and is stable in virtually all environments.
Circular blanks and sheet material are available in stock to meet your most
urgent delivery requirements. Custom diameters,rectangles, CNC-profiled blanks,
generated lens blanks, prisms, and near-net shape domes can also be made
to your specifications. Dow Electronic Materials' CVD ZINC SELENIDE Material is
also available as an evaporative source material. It is supplied in specified
lump sizes (2–20 mm), which are hand selected to minimize surface
contamination and to be free from saw cut, abraded or polished edges
HPFS® 8655 fused silica is an extremely pure synthetic glass with very low water content which leads to an exceptionally stable and predictable dynamic behavior under deep ultraviolet (DUV) laser exposures. It is a compaction only material, showing no expansion, with a much greater resistance versus the well-known standard compaction curve resulting in the lowest possible induced wavefront distortion.
Glass Code 8655 is commonly utilized to manufacture optical lenses for use in state-of-the-art microlithography due to its minimized induced absorption and low polarization birefringence behaviors. In addition to its performance under DUV laser exposures, HPFS® 8655 fused silica meets microlithography’s lowest static birefringence, absorption and uniform refractive index homogeneity specifications.
