Quartz Optical Windows
Chenyu Optics manufactures precision quartz and fused silica optical windows for ultraviolet, visible and near-infrared applications. These windows provide high transmission, low thermal expansion and reliable performance in laser, spectroscopy, semiconductor and industrial optical systems.
Overview
Quartz optical windows are flat, plane-parallel components used to protect sensors, laser optics, instruments and internal optical assemblies while maintaining high optical transmission. They are commonly selected for UV systems, spectroscopy, laser equipment, semiconductor processing and industrial inspection systems.
Compared with ordinary optical glass, fused silica offers excellent UV transmission, low thermal expansion and good chemical stability. Chenyu Optics provides custom quartz windows with controlled surface quality, flatness, parallelism, chamfers and coating options according to customer drawings.
Key Advantages
Typical Specifications
| Material | Quartz / Fused Silica |
|---|---|
| Transmission Range | 185 nm – 2.5 μm typical |
| Refractive Index | 1.458 @ 587.6 nm |
| Density | 2.20 g/cm³ |
| Hardness | Knoop 460 typical |
| Surface Quality | 10-5, 20-10, 40-20 or custom |
| Surface Flatness | λ/10 or λ/4 @ 632.8 nm |
| Clear Aperture | > 90% |
| Parallelism | < 30 arcsec standard, high precision available |
| Chamfer | 0.1 – 0.5 mm × 45° |
| Coating | Uncoated, UV AR, VIS-NIR AR, BBAR, Custom |
| Thickness Tolerance | ±0.1 mm or custom |
Typical Transmission Curve
Manufacturing Capability
Precision Polishing
Double-side polishing for controlled surface quality, flatness and optical performance.
CNC Processing
Custom diameters, square windows, rectangular plates, chamfers and edge treatment.
Optical Coating
UV AR, VIS-NIR AR, BBAR and custom coating options are available.
Inspection
Dimensional, surface quality, flatness, parallelism and transmission inspection.
Cleaning & Packaging
Clean handling and protective packaging for optical windows before shipment.
Applications
UV Optical Systems
UV curing, ultraviolet instruments and UV sensor protection windows.
Laser Systems
Protective windows for fiber, Nd:YAG, excimer and industrial laser equipment.
Semiconductor Equipment
Lithography, plasma processing, wafer inspection and clean optical systems.
Spectroscopy
Spectrometers, analytical instruments and environmental monitoring systems.
Industrial Inspection
Machine vision, optical sensors and industrial measurement systems.
Scientific Research
Laboratory optics, optical benches and precision research instruments.
FAQ
What is the difference between quartz and fused silica optical windows?
Fused silica is a high-purity amorphous silica material commonly selected for UV and precision optical applications. Optical quartz can also be used depending on wavelength range, purity requirements and cost targets.
What transmission range can quartz optical windows cover?
Typical fused silica windows provide useful transmission from about 185 nm to 2.5 μm. Actual performance depends on material grade, thickness, coating and surface quality.
Can quartz windows be used for laser applications?
Yes. Quartz and fused silica windows are widely used in laser systems. For high-power applications, surface quality, coating design and laser damage threshold should be reviewed based on the actual wavelength and power density.
What coating options are available?
Uncoated, UV AR, visible AR, VIS-NIR broadband AR, laser line AR and custom coatings can be provided according to wavelength range and angle of incidence.
Can you manufacture custom shapes and sizes?
Yes. Circular, square, rectangular, wedge and custom-shaped quartz windows can be manufactured according to drawings, including chamfers, edge finishing and tight tolerances.
Need Custom Quartz Optical Windows?
Send us your drawing or requirements. Our engineering team will review your optical, mechanical and coating specifications and provide a suitable solution for your project.