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Quartz Windows are high-performance optical components manufactured from high-purity fused quartz or fused silica (SiO₂). They are widely used in laser systems, semiconductor equipment, optical instruments, medical devices, aerospace applications, and high-temperature industrial environments.
Quartz windows are designed to protect sensitive optical systems while allowing efficient light transmission with minimal optical loss and wavefront distortion. Due to their excellent UV transmission, low thermal expansion coefficient, superior thermal stability, and outstanding chemical resistance, quartz windows are an ideal choice for demanding applications.
1. Wide Spectral Transmission Range
High transmission from deep ultraviolet (approximately 185 nm) to near infrared (up to 2500 nm), especially suitable for UV optical systems.
2. Excellent High-Temperature Resistance
Features an extremely low thermal expansion coefficient, maintaining dimensional stability even under high-temperature conditions.
3. Outstanding Thermal Shock Resistance
Capable of withstanding rapid heating and cooling with minimal risk of cracking.
4. Superior Chemical Stability
Resistant to most acids, salts, and chemical environments except hydrofluoric acid and certain strong acids under specific conditions.
5. Low Optical Distortion
High material uniformity and low birefringence make it suitable for precision optical applications.
Quartz windows are optical components made from fused silica or crystalline quartz, valued for their high thermal resistance, broad UV-to-IR transmission, and chemical durability. Common uses include:
1. Laser Systems
Used as output couplers, beam splitters, or protective windows in high-power lasers (e.g., excimer, Nd:YAG, CO₂ lasers) due to low absorption and high damage threshold.
2. Semiconductor Manufacturing
Employed in lithography equipment, wafer inspection tools, and plasma etching chambers, where UV transparency and resistance to harsh gases are critical.
3. Analytical Instruments
Found in UV-Vis spectrophotometers, fluorometers, and FTIR spectrometers because of their broad spectral range (from ~180 nm to 2500 μm).
4. High-Temperature Environments
Used as viewports in furnaces, reactors, and combustion chambers, withstanding temperatures up to 1100 °C (2000 °F) in continuous use.
5. Aerospace & Defense
Integrated into sensors, targeting pods, and missile seeker domes for their strength, thermal stability, and transmission in harsh environments.
6. Medical Devices
Incorporated into diagnostic equipment (e.g., flow cytometers, endoscopes) and laser surgery delivery systems where clarity and sterilization resistance are needed.
7. Vacuum Systems
Serve as sealed viewports in vacuum chambers for coating processes, thin-film deposition, or surface analysis (e.g., XPS, STM).
8. UV Curing & Illumination
Used in UV lamps, curing systems, and deep-UV light sources where minimal solarization (UV-induced darkening) is required.
Product Name: Quartz Window / Fused Silica Optical Window
Material: High Purity Fused Quartz / UV Fused Silica
Shape: Round / Square / Rectangular / Customized
Application: Laser systems, spectroscopy, semiconductor equipment, UV systems, vacuum chambers, optical instruments
| Objet | Specification |
|---|---|
| Matériau | Fused Quartz / Fused Silica |
| Purity | >99.99% SiO₂ |
| Diameter / Size | 1–500 mm (custom available) |
| Épaisseur | 0.5–50 mm |
| Tolérance de diamètre | ±0.02 mm ~ ±0.10 mm |
| Tolérance d'épaisseur | ±0.01 mm ~ ±0.05 mm |
| Qualité de surface | 10-5 / 20-10 / 40-20 Scratch-Dig |
| Surface Flatness | λ/10 @633nm |
| Parallelism | <1 arc min |
| Clear Aperture | >90% |
| Edge Finish | Ground / Polished / Chamfer |
| Revêtement | Uncoated / AR / HR / Customized |
| Transmission Range | 190–3500 nm |
| Transmission | >90% |
| Working Temperature | Up to 1050°C |
| Thermal Expansion Coefficient | 5.5×10⁻⁷ /°C |
| Densité | 2.2 g/cm³ |
| Dureté | Mohs 7 |
| Indice de réfraction | 1.458 @632.8nm |
