Sapphire Optical Windows Customizable 99.99% Al₂O₃ High Transparency for Laser Windows
Sapphire windows are made from single-crystal aluminum oxide (Al₂O₃), characterized by high hardness, excellent transparency, high-temperature resistance, and corrosion resistance. They are widely used in optical systems and harsh environments. Naturally occurring as corundum, this material can be finely processed to produce high-quality optical windows.
Basic Parameters Table
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Parameter
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Value/Description
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Material
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Sapphire (Al₂O₃), single-crystal form
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Transmission Range
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0.2–5.5 μm (covers visible to infrared light)
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Hardness
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Mohs hardness 9 (second only to diamond)
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Temperature Resistance
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Withstands temperatures exceeding 2000°C
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Corrosion Resistance
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Highly resistant to acids, alkalis, and solvents
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Transmittance
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>80% in visible light; >90% in infrared range
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Dimensions & Tolerance
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Customizable (e.g., diameters: 8", 6"; thickness tolerance: ±0.1 mm)
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Surface Quality
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High smoothness achievable (e.g., 40-20 or other standards)
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Applications
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Laser systems, optical sensors, high-temperature/pressure devices, aerospace, architecture, automotive
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Sapphire Optical Windows Features & Advantages
- High Hardness and Wear Resistance: Sapphire (Al₂O₃) is the second hardest material on Earth after diamond, with a Mohs hardness of 9, ensuring exceptional wear resistance.
- Excellent Transparency: Sapphire windows typically exhibit over 80% transmittance in the visible spectrum and exceeding 90% in the near- to mid-infrared range.
- High Temperature Resistance: Capable of remaining stable at temperatures up to 2000°C, making it suitable for high-temperature applications.
- Strong Corrosion Resistance: Highly resistant to acids, alkalis, and various solvents, ideal for use in corrosive environments.
Sapphire Optical Windows Application Fields
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Laser Systems: Withstand high-power laser beams, serving as optical windows in laser devices.
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Optical Sensors and Instruments: Protect sensors in harsh environments to ensure data accuracy; also used in precision optical instruments.
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High-Temperature and High-Pressure Equipment: Maintain clear visibility for observation and monitoring in extreme process conditions.
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Aerospace and Aviation: Used in aircraft cockpit windows due to their high strength and weather resistance.
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Architecture and Automotive Industries: Employed in large glass curtain walls, skylights, and high-end car side windows for their strength, aesthetics, and transparency.
Related Sapphire Optical Windows Recommendations
1. Custom Monocrystalline Sapphire Optical Domes Sapphire Protective Window
Q1: Why choose a sapphire optical window over other materials?
A1: Sapphire optical windows offer exceptional hardness (Mohs 9), high thermal stability (up to 2000°C), and broad-spectrum transparency (UV to mid-IR), making them ideal for harsh environments like laser systems and high-temperature applications.
Q2: What are the key applications of sapphire optical windows?
A2: They are widely used in high-power laser systems, optical sensors, aerospace windows, and industrial equipment due to their durability, chemical inertness, and ability to maintain performance under extreme conditions.
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