Fused Silica - SiO2

Fused silica is a high-purity, amorphous form of silica that is commonly used in the production of precision optics. It is made by melting high-purity silica (SiO2) at extremely high temperatures and then rapidly cooling it to form a solid glass. Fused silica is transparent from the ultraviolet (UV) to the near-infrared (NIR) region of the electromagnetic spectrum.

Fused silica optics have a number of desirable properties that make them well-suited for use in high-performance optical systems. They have a very low coefficient of thermal expansion, which means that their shape and optical performance are not affected by changes in temperature. They are also extremely hard and resistant to scratching and abrasion, which makes them durable and long-lasting. Fused silica is also chemically inert and resistant to attack by most acids, making it an ideal material for use in harsh environments.

Fused silica optics are used in a wide range of applications, including lasers, spectroscopy, astronomy, and semiconductor manufacturing. They are commonly used as windows, lenses, and mirrors in optical systems where high-performance, stability, and durability are required.

Fused silica optics can be manufactured using a variety of techniques, including cutting, grinding, polishing, and ion beam figuring. These processes can produce optics with high surface quality, excellent dimensional accuracy, and precise optical performance.

In summary, fused silica optics are highly desirable for their excellent optical and mechanical properties, as well as their durability and resistance to harsh environments. They are widely used in many fields of science and industry where high-performance optical systems are required.