Abstract
Ti:Al₂O₃ optical windows are advanced engineered materials combining the superior hardness of alumina (Mohs 9) with titanium-enhanced optical performance. Synthesized via high-temperature melting and precision doping, these windows exhibit exceptional transmittance (≥92% in visible spectrum) and UV-induced blue fluorescence (450nm peak). Key advantages include extreme durability (Vickers hardness 2300-2800 MPa), high-temperature resistance (up to 1800°C), and corrosion/radiation stability (pH 1-13, γ-ray attenuation <0.5%). Designed for industrial and scientific applications, they optimize performance in semiconductor lithography (sub-3nm alignment), LiDAR systems (-40°C–85°C operation), and high-power lasers (1064nm, 10kW/cm²). Cost-effective and customizable, Ti:Al₂O₃ windows redefine reliability for cutting-edge optical systems.
Our company, ZMSH, has been a prominent player in the semiconductor industry for over a decade, boasting a professional team of factory experts and sales personnel. We specialize in providing customized sapphire wafer solutions, offering both tailored designs and OEM services to meet diverse client needs. At ZMSH, we are committed to delivering products that excel in both price and quality, ensuring customer satisfaction at every stage. We invite you to contact us for more information or to discuss your specific requirements.
Optical windows Tecnical Parameters
Property | Value |
Chemical formula | Ti3+ Al2O3 |
Crystal structure | hexagonal |
Orientation | A-Axis within 5°,E-vector parallel to C-Axis |
Mass density | 3.98 g/cm3 |
Moh hardness | 9 |
Young's modulus | 335 GPa |
Tensile strength | 400 MPa |
Melting point | 2040 °C |
Thermal conductivity | 33 W / (m K) |
Thermal expansion coefficient | ≈ 5 × 10-6K-1 |
Thermal shock resistance parameter | 790 W/m |
Refractive index at 633 nm | 1.76 |
Temperature dependence of refractive index | 13 × 10-6K-1 |
Ti density for 0.1% at. doping | 4.56 × 1019 cm-3 |
Concentrations | (0.05~0.35) wt% |
End Configuration | Flat/Flat or Brewster/Brewster ends |
Emission cross section at 790 nm (polarization parallel to the c axis) | 41 × 10-20 cm2 |
Coatings | Standard coating is AR with R < 5.0% each face @532 nm and R < 0.5% each face, from 650 nm to 850 nm. Custom coatings supported. |
Optical windows Applications
Semiconductor Manufacturing
Laser Systems
Automotive LiDAR
Aerospace & Defense
Medical Devices
Consumer Electronics
Product Display - ZMSH
Q: What are the key advantages of Ti:Al₂O₃ windows compared to traditional materials?
A: Ti:Al₂O₃ windows combine exceptional hardness, high-temperature resistance, and superior optical clarity. They outperform glass and standard sapphire in durability while offering customizable features like UV fluorescence or anti-reflective coatings.
Q: In what industries are these windows commonly used?
A: They are widely adopted in semiconductor manufacturing, laser systems, autonomous vehicles, aerospace, medical devices, and consumer electronics due to their reliability in extreme environments.
Q: Are they cost-effective compared to natural sapphire?
A: Absolutely. Synthetic production reduces costs significantly while maintaining or exceeding the performance of natural alternatives.
Q: Are there limitations in size or thickness?
A: Modern manufacturing allows large-scale and ultra-thin designs. Discuss your specifications with our team for feasibility.