Sapphire windows are highly prized in various high-performance applications due to their remarkable mechanical, chemical, and optical properties. Made from synthetic sapphire (Al2O3), these windows are second only to diamond in terms of hardness, making them extremely durable and scratch-resistant. Their broad transmission range from the ultraviolet (UV) to the infrared (IR) spectrum further enhances their versatility in demanding environments.
$18.20–$337.40Price range: $18.20 through $337.40
Important Remark
The minimum cart order value is USD 2,000. Stock and lead time are subject to confirmation, and listed prices are for reference only—please email us to confirm availability and final pricing before ordering.
Shape Optics Sapphire Windows are premium optical components engineered for extreme environments where mechanical strength, chemical resistance, and wideband optical transmission are critical. Manufactured from synthetic sapphire (Al₂O₃), these windows combine exceptional durability with excellent optical clarity, making them ideal for high-power, high-pressure, and harsh operating conditions.
With a hardness second only to diamond, sapphire windows offer outstanding scratch and abrasion resistance, ensuring long-term performance even in demanding industrial, aerospace, and defense applications.
Key Properties & Advantages
1.Exceptional Mechanical Strength
Ultra-high hardness (Mohs 9): Highly resistant to scratching, wear, and impact
High tensile strength: Suitable for high-pressure and vacuum environments
Excellent thermal stability: Maintains structural integrity at elevated temperatures
2.Broad Optical Transmission
Wide spectral range: High transmission from UV (~190 nm) to mid-infrared (~5 µm)
Low optical absorption: Ideal for high-power laser and imaging applications
High refractive index: Enables compact optical designs
3.Superior Chemical & Environmental Resistance
Resistant to most acids, alkalis, and corrosive gases
Performs reliably in harsh chemical and marine environments
Excellent weather and radiation resistance
Applications
High-Pressure Viewports & Windows: Used in vacuum chambers, pressure vessels, and deep-sea or high-altitude systems
Aerospace & Defense Optics: Missile domes, sensor windows, and reconnaissance systems
Laser & High-Power Optical Systems: Protective windows for high-energy laser transmission
Refractive Index: Varies with wavelength; approximately 1.75 at 5μm
Wavelength Range: 0.15 – 5.5μm
Mechanical Properties
Hardness: HK1370 kg/mm², second only to diamond, providing excellent scratch resistance.
Thermal Conductivity: 42 W/m*K at 25°C
Thermal Expansion Coefficient: 6.9 x 10^-6/°C perpendicular to the c-axis, 7.6 x 10^-6/°C parallel to the c-axis
Chemical Properties
Chemical Resistance: Highly resistant to acids, alkalis, and other harsh chemicals, making it suitable for use in chemically aggressive environments.
Insolubility: Insoluble in water and resistant to chemical corrosion, ensuring longevity and reliability in various applications.
Optical Properties
High Transmission: Provides high transmission without absorption in both visible and infrared regions, making them suitable for a wide range of optical applications.
Refractive Index: Approximately 1.75, allowing for excellent optical clarity and minimal distortion.
Surface Quality: Superior surface quality (40-20 scratch/dig) ensures minimal scattering and high optical performance.
Transmission Wavelength
Sapphire windows have a broad transmission range from 0.15 to 5.5 micrometers, covering both the ultraviolet and infrared spectra. This makes them versatile for various applications requiring wideband optical transparency.
Applications
High-Performance Optics: Used in high-power laser systems, optical components in scientific instruments, and advanced imaging systems due to their durability and wide transmission range.
Harsh Environments: Ideal for aerospace, military, and industrial applications where exposure to harsh conditions is common.
Medical and Scientific Equipment: Employed in medical imaging devices and scientific instruments that require high optical clarity and resistance to chemical corrosion.
