Ultraviolet (UV) synthetic quartz ingots are high-performance optical materials engineered for demanding applications in deep-UV and UV transmission systems. With exceptional purity, controlled optical properties, and outstanding structural uniformity, these ingots serve as the foundational raw material for precision optical components used in semiconductors, photolithography, laser systems, and advanced scientific instrumentation. Compared with conventional quartz, UV-grade synthetic quartz offers significantly lower impurity levels, reduced absorption in the UV spectrum, and superior resistance to radiation-induced degradation, making it indispensable in next-generation high-tech industries.
Our Capabilities
Alfa Chemistry provides high-performance UV synthetic quartz ingots designed to meet the stringent demands of advanced semiconductor manufacturing. Our products feature 1D/3D striae-free characteristics, ensuring extremely high optical uniformity across the entire material. This superior homogeneity minimizes optical distortion and supports precise light transmission in critical processes. In addition, our UV synthetic quartz ingots exhibit excellent resistance to deep-UV radiation, maintaining stable performance even under prolonged exposure to high-energy irradiation environments commonly encountered in semiconductor fabrication.
Specification Parameters
QI-10 UV Synthetic Quartz Ingots (Cat: ACSEM-QI-0010)
QI-11 UV Synthetic Quartz Ingots (Cat: ACSEM-QI-0011)
Product Features
| Model | Optical Uniformity (ppm) | Stress Birefringence (nm/cm) | Bubble | Total Metal Impurities (ppb) | Striae Grade * | OH (ppm) | Fluorescence |
| QI-10 | ≤5, ≤2, ≤1 | ≤5, ≤2, ≤1 | Class 00, Class 0 | <20 | 3D | ≤50 | None |
*The three-dimensional light transmission directions of QI-10 all meet the ISO 10110 Class 5 striae grade.
Refractive Index Performance
| Spectral Line Wavelength (nm) | Refractive Index | Spectral Line Wavelength (nm) | Refractive Index |
| 365.11 | 1.47459 | 643.85 | 1.45677 |
| 404.66 | 1.46967 | 656.27 | 1.45643 |
| 435.84 | 1.46675 | 706.52 | 1.45521 |
| 441.60 | 1.46628 | 768.20 | 1.45395 |
| 479.99 | 1.46357 | 852.11 | 1.45252 |
| 486.13 | 1.46319 | 1013.98 | 1.45027 |
| 546.07 | 1.46015 | 1129.00 | 1.44888 |
| 587.56 | 1.45853 | 1529.6 | 1.44422 |
| 589.30 | 1.45847 | 1970.1 | 1.43846 |
| 632.80 | 1.45709 | 2325.4 | 1.43295 |
Test conditions: Atmospheric pressure 1013.25 hPa, 50% RH, temperature 22 ± 0.5 °C
Sellmeier Dispersion Constant
| Model | A1 | A2 | A3 | B1 | B2 | B3 |
| QI-10 | 2.03904102E+00 | 4.51902646E-01 | 6.52673232E-01 | 2.14082426E+02 | 2.18106124E-03 | 1.18302193E-02 |
Product Features
| Model | Optical Uniformity (ppm) | Stress Birefringence (nm/cm) | Bubble | Total Metal Impurities (ppb) | Striae Grade * | OH (ppm) | Fluorescence |
| QI-11 | ≤5, ≤2, ≤1 | ≤5, ≤2, ≤1 | Class 00, Class 0, Class 1 | <50 | 1D | ≤200 | None |
*Only the specified light transmission direction of QI-11 meets the ISO 10110 Class 5 striae grade.
Refractive Index Performance
| Spectral Line Wavelength (nm) | Refractive Index | Spectral Line Wavelength (nm) | Refractive Index |
| 365.11 | 1.47458 | 643.85 | 1.45676 |
| 404.66 | 1.46966 | 656.27 | 1.45642 |
| 435.84 | 1.46674 | 706.52 | 1.45519 |
| 441.60 | 1.46626 | 768.20 | 1.45393 |
| 479.99 | 1.46355 | 852.11 | 1.45250 |
| 486.13 | 1.46317 | 1013.98 | 1.45026 |
| 546.07 | 1.46013 | 1129.00 | 1.44887 |
| 587.56 | 1.45852 | 1529.6 | 1.44421 |
| 589.30 | 1.45845 | 1970.1 | 1.43845 |
| 632.80 | 1.45707 | 2325.4 | 1.43293 |
Test conditions: Atmospheric pressure 1013.25 hPa, 50% RH, temperature 22 ± 0.5 °C
Choose Alfa Chemistry
Choosing Alfa Chemistry means partnering with a reliable supplier committed to quality, consistency, and innovation in advanced quartz materials. We combine deep expertise in optical material science with robust manufacturing infrastructure to deliver UV synthetic quartz ingots that meet the highest industry standards. Through continuous process optimization and rigorous quality inspection, we ensure every ingot provides stable performance in critical UV applications. If you are interested in our products, please contact us immediately.
