sapphire optical windows High transmission Dia 2mm-200mm or customizable surface quality 40/20

Short Description:

Our Sapphire Optical Windows are designed for high-performance optical systems requiring unparalleled durability, high transmission, and resistance to extreme conditions. Made from high-quality sapphire crystal, these optical windows offer outstanding performance across a wide transmission range (0.17 to 5 μm) and feature a customizable diameter ranging from 2 mm to 200 mm. Available with surface quality up to 40/20 (scratch-dig), these windows are perfect for high-end applications in scientific research, aerospace, defense, and industrial environments.

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Product Detail

Product Tags

Core Description

●Material: High-Grade Sapphire (Al₂O₃)
●Transmission Range: 0.17 to 5 μm
●Diameter Range: 2 mm to 200 mm (Customizable)
●Surface Quality: Up to 40/20 (scratch-dig)
●Melting Point: 2030°C
●Mohs Hardness: 9
●Refractive Index: No: 1.7545, Ne: 1.7460 at 1 μm
●Thermal Stability: 162°C ± 8°C
●Thermal Conductivity: To C-axis: 25.2 W/m·°C at 46°C, || to C-axis: 23.1 W/m·°C at 46°C
Our sapphire optical windows are perfect for a wide range of applications, including infrared optics, high-power laser systems, and optical sensing devices. Their high thermal and mechanical stability ensures consistent performance in challenging conditions.

Application Areas

●Laser Systems: For high-power laser applications requiring transparent and durable windows.
●Infrared Optics: Used in optical instruments working across the infrared spectrum.
●Aerospace & Defense: Ideal for harsh environmental conditions with high resistance to wear and thermal shock.
●Medical Devices: Utilized in optical instruments for precision imaging and sensing.
●Scientific Research: For use in advanced optical systems in laboratories and research facilities.

Detailed Specifications

Property	Value
Transmission Range	0.17 to 5 μm
Diameter Range	2 mm to 200 mm (customizable)
Surface Quality	40/20 (scratch-dig)
Refractive Index (No, Ne)	1.7545, 1.7460 at 1 μm
Reflection Loss	14% at 1.06 μm
Absorption Coefficient	0.3 x 10⁻³ cm⁻¹ at 2.4 μm
Reststrahlen Peak	13.5 μm
dn/dT	13.1 x 10⁻⁶ at 0.546 μm
Melting Point	2030°C
Thermal Conductivity	To C-axis: 25.2 W/m·°C at 46°C,
Thermal Expansion	(3.24...5.66) x 10⁻⁶ °C⁻¹ for ±60°C
Hardness	Knoop 2000 (2000g indenter)
Specific Heat Capacity	0.7610 x 10³ J/kg·°C
Dielectric Constant	11.5 (para), 9.4 (perp) at 1 MHz
Thermal Stability	162°C ± 8°C
Density	3.98 g/cm³ at 20°C
Vickers Microhardness	To C-axis: 2200,
Young’s Modulus (E)	To C-axis: 46.26 x 10¹⁰,
Shear Modulus (G)	To C-axis: 14.43 x 10¹⁰,
Bulk Modulus (K)	240 GPa
Poisson Ratio
Solubility in Water	98 x 10⁻⁶ g/100 cm³
Molecular Weight	101.96 g/mol
Crystal Structure	Trigonal (hexagonal), R3c

Customization Services

We offer customized sapphire optical windows based on your specific design and performance requirements. Whether you need a specific diameter, surface finish, or other tailored characteristics, we provide precision manufacturing to meet your exact needs.
Our customization services include:
●Diameter & Shape: Custom diameters ranging from 2 mm to 200 mm, with precision cutting to meet your application requirements.
●Surface Quality: We offer surface finishes up to 40/20 scratch-dig for optical clarity and durability.
●Performance Specifications: Custom refractive indices, transmission ranges, and other optical properties to match your system's needs.
●Coatings & Surface Treatments: Anti-reflective coatings, protective coatings, and other surface treatments are available to enhance performance and durability.

Contact Us for Custom Orders

We welcome inquiries for custom sapphire optical windows. Please send us your design files or technical specifications, and our experienced engineers will collaborate with you to produce high-quality windows that meet your exact requirements.

Product Highlights:

High transmission across 0.17 to 5 μm range.
Customizable diameters from 2 mm to 200 mm.
Surface quality up to 40/20 (scratch-dig) for precision optics.
Ideal for high-power lasers, infrared optics, aerospace, and industrial applications.

Our sapphire optical windows are engineered to provide unmatched durability, optical clarity, and resistance to extreme environmental conditions, making them the perfect choice for high-performance optical systems.