JGS1 UV Quartz Window Factories & Exporters Serving Gwangju

In high-precision optical engineering, material selection fundamentally limits the resolution, lifetime, and thermal stability of optoelectronic systems. JGS1 optical quartz glass is a high-purity synthetic fused silica synthesized from silicon tetrachloride (SiCl4) via chemical vapor deposition (CVD) or hydrogen-oxygen flame hydrolysis. Unlike electrically fused quartz (JGS3) or natural flame-melted quartz (JGS2), JGS1 exhibits virtually zero metallic impurities (total metallic content below 2.0 ppm). Crucially, it does not contain structural bubbles, micro-inclusions, or crystalline granular boundaries. This synthetic structure yields an optical cutoff wavelength down to 185 nm, making it the premier window substrate for Deep Ultraviolet (DUV) lithography, excimer laser optics (193nm ArF, 248nm KrF), and high-resolution UV spectrometry.

For photonics engineers and vacuum system designers operating across Gwangju's cutting-edge scientific corridors, thermo-mechanical reliability is equally as paramount as optical transmission. JGS1 features an extraordinarily low coefficient of thermal expansion (CTE of 5.5 × 10⁻⁷ /°C between 20°C and 300°C), which is nearly one-thirtieth that of standard soda-lime or borosilicate glass. This gives JGS1 viewports unmatched thermal shock resistance, enabling them to survive instant 1000°C temperature deltas without structural fracturing. Furthermore, JGS1 maintains mechanical integrity up to its annealing point of 1215°C and continuous operation limits of 1100°C, providing structural safety in harsh plasma deposition (PECVD, ALD) and high-fluence laser ablation chambers.