High-temperature-resistant fused quartz glass sheet

Ultra-thin, high-transmission optical UV-resistant heat-tolerant fused quartz glass sheets are a high-performance optical material made from high-purity silicon dioxide (SiO₂), characterized by the following features: 1. Ultra-thin design: With thickness as low as 0.2 millimeters and extremely light weight, they are easy to integrate into space- and weight-sensitive devices such as portable optical instruments and wearable devices. 2. High ultraviolet transmission: They exhibit exceptionally high transmittance across the ultraviolet to near-infrared spectrum (250-1550 nanometers), with particularly outstanding performance in the ultraviolet band (250-425 nanometers). This enables efficient transmission of ultraviolet light, making them suitable for applications like ultraviolet spectroscopy analysis, photochemical reactions, and ultraviolet sterilization. 3. Heat resistance: They can withstand continuous operating temperatures up to 1100°C, with an extremely low coefficient of thermal expansion (approximately 5.5×10⁻⁷/°C). This ensures dimensional stability and optical performance even in high-temperature environments, applicable to high-temperature optical systems and industrial furnace observation windows. 4. Excellent optical quality: After precision polishing, they have low wavefront distortion (up to λ/10) and good optical uniformity, ensuring precise beam transmission and imaging quality. They are suitable for high-precision optical instruments and laser systems. 5. Chemical stability: Possessing strong chemical inertness, they are resistant to acids, alkalis, and corrosion, showing minimal reactivity with most chemicals. This allows long-term use in harsh chemical environments. Combining ultra-thinness, high transmission, heat resistance, and superior optical properties, this glass sheet is an indispensable key material in high-end optics, semiconductors, healthcare, aerospace, and other fields.