Quartz Windows

Quartz windows are high-performance optical components made from pure fused silica. Renowned for their exceptional material characteristics, they deliver superior performance across thermal, chemical, and optical domains. Thermally, quartz windows demonstrate excellent resistance to rapid and extreme temperature fluctuations. Chemically, they offer outstanding corrosion resistance—though care must be taken to avoid simultaneous exposure to multiple strong acids or alkalis. Optically, quartz stands out for its broad spectral transmission, spanning the deep ultraviolet (DUV) through visible to near-infrared (NIR) ranges. It is the premier UV-transmitting material available, with high transmission even in the far-UV region, while maintaining excellent clarity in the visible and NIR bands. From a manufacturing and customization perspective, quartz windows support high-precision fabrication. Custom windows can be produced with tightly controlled surface figure accuracy—defined as the deviation between the polished surface and an ideal plane—measured using wavefront interferometry (also referred to as reflective surface accuracy). Furthermore, quartz windows offer exceptional design flexibility and customization capability.