Window
Fused silica window (UV to IR)
Fused silica window boasts exceptional high-temperature resistance, low thermal expansion and excellent UV to IR transmittance. With ultra-low impurity content and superb optical uniformity, it delivers stable performance under harsh environments. Precision polished surfaces ensure high flatness and minimal scattering. Widely used in laser systems, optical instrumentation, semiconductor equipment and ultraviolet detection fields.
Specifications
UV-IR Fused Silica (Fused Quartz)
Material: High-purity optical-grade fused silica (SiO₂), amorphous
Diameter Size: 1–600 mm
Transmission Range: 0.16–4.5 μm (deep UV to near-IR)
Refractive Index: 1.46 at 1.06 μm, low wavelength dependence
Low Absorption: Ultra-high transmittance with minimal energy loss
Low Dispersion: Excellent optical uniformity, minimizes chromatic aberration
Thermal Stability: Low thermal expansion coefficient, stable across wide temperature ranges
Surface Quality: 10/5 or better
Surface Accuracy: PV < λ/15 or better
Coatings Available: AR coating (T>99.5% at single wavelength), broadband AR, or custom UV-IR coatings
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