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Fused Quartz Square Windows for Optic
Our precision custom Fused Quartz square windows and optical viewports are engineered for demanding applications in semiconductor equipment, optical systems, and UV processes. Crafted from high-purity Fused Quartz, these components offer exceptional optical clarity, thermal stability, and chemical resistance, ensuring precise light transmission and reliable performance in critical and harsh environments.
Material
- Base Material: High-purity synthetic fused silica (SiO₂ ≥99.99%)
- Optical Grade: UV-grade transparency with low hydroxyl (OH) content.
Dimensions
- Diameter :100 mm ±0.05 mm
- Thickness : 3 mm ±0.05 mm
- Edge Treatment : Fine-ground ≤0.3 mm chamfer
Physical Properties
- Density: 2.2 g/cm³
- Hardness: Mohs 5.5-6.5
- Thermal Expansion: 0.55 × 10⁻⁶/°C (20-300°C)
- Softening Point: 1683°C
Optical Properties
- Transmission Range: 190 nm (UV) to 2500 nm (IR)
- Refractive Index: 1.458 @ 587.6 nm (nd)
- Scratch-Dig: 60/40 (MIL-PRF-13830B)
- Surface Flatness: λ/4 @ 632.8 nm
Surface Specifications
- Ra Roughness : ≤5 Å (polished surfaces)
- Parallelism : ≤1 arcmin
Chemical Resistance
- Resistant to acids (except HF), water, and organic solvents.
Applications
- Optical windows, laser systems, UV lithography.
- Semiconductor processing, high-temperature viewports.
Certifications & Compliance
- RoHS compliant.
- Custom metrology reports available upon request.
Packaging
- Individually wrapped in anti-static foam.
- Shipped in rigid, crush-proof containers.
Notes
Avoid mechanical shock or direct contact with sharp objects.
Clean with IPA or acetone using lint-free wipes.
For full technical data or custom requests, contact email
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