EQ-600
JGS-1 ultraviolet optical quartz glass material operates across a spectral range of 185–2500 nm, achieving a transmittance of up to 90% in the deep‑UV region, making it the highest‑performing material for UV‑optical windows.
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EQ600
JGS-1 ultraviolet‑optical quartz glass material operates across a spectral range of 185–2500 nm, achieving a transmittance of up to 90% in the deep‑UV region, making it the highest‑performing material for UV optical windows.
Our EQ600 series of optical-grade synthetic quartz glass products is manufactured using the chemical vapor deposition (CVD) process, in which high-purity gaseous silicon tetrachloride (SiCl4) is hydrolyzed and melted in a hydrogen–oxygen flame. These materials exhibit exceptionally high transmittance across the ultraviolet to near-infrared spectral range, making them an excellent JGS‑1 grade material. The products are free of fluorescence, bubbles, and striations, and are particularly well suited for UV‑optical windows. They contain a relatively high concentration of hydroxyl groups, resulting in strong absorption at 2730 nm in the infrared region.
Purity of synthetic quartz glass
Impurity content parameter (reference value) ppm
| Al | Fe | K | Li | Cu | Na | This | Magnesium | Ti | OH | |
| JGS-1 (EQ600) | <0.1 | <0.05 | <0.05 | <0.05 | <0.05 | <0.1 | <0.1 | <0.05 | <0.03 | <1000 |
Transmittance Reference Table (mm) for Synthetic Quartz Material JGS-1
| Quartz Glass | Transmittance (reference value) | |||||||||||||||||||||||||
| 190 | 200 | 220 | 240 | 260 | 280 | 300 | 320 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 | 1500 | 2000 | 2150 | 2200 | 2300 | 2500 | 2600 | 2650 | 2700 | 2800 | 3000 | |
| JGS-1 (EQ600) | 88 | 89 | 90 | 91 | 92 | 92 | 92 | 92 | 92 | 93 | 93 | 93 | 93 | 93 | 93 | 93 | 93 | 92 | 75 | 91 | 85 | 55 | 10 | 0 | 3 | 80 |
Transmittance spectrum
Keywords: Quartz glass | Quartz components for semiconductors
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