Sapphire windows feature extreme hardness and wide optical transmission from UV (190nm) to mid-IR. High acoustic velocit...
Sapphire windows feature extreme hardness and wide optical transmission from UV (190nm) to mid-IR. High acoustic velocity, high temperature resistance, corrosion resistance, and high transparency. Custom coating designs available. Sapphire optical windows combine extreme mechanical hardness (Mohs 9) with broadband transmission from 180nm to 4.5um, making them uniquely suited for the most demanding applications. Their exceptional scratch resistance makes them the standard choice for watch crystals, barcode scanner windows, and underwater camera ports where physical durability is paramount. Sapphire also provides excellent chemical inertness, resisting virtually all acids and alkalis at room temperature, which is critical for analytical instrumentation and downhole sensing in oil and gas exploration. The high thermal conductivity and thermal shock resistance enable reliable operation at temperatures exceeding 1000 degrees Celsius. PhotonEdge sapphire windows are available in diameters from 5mm to 100mm with 40-20 or 20-10 surface quality. Both uncoated and AR-coated versions support UV through MWIR applications. For extreme pressure applications, thickness can be increased beyond standard catalog dimensions, with pressure-rated designs available for subsea and downhole environments.
Select the optimal substrate material based on your wavelength, environment, and budget requirements.
| Material | Transmission | Key Advantage | Considerations |
|---|---|---|---|
| Sapphire | UV / VIS / NIR (150-5500nm) | Extremely hard (9H), scratch resistant | Higher refractive index, birefringent |
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AR 350-700nm coating optimized for your application requirements.
Uncoated coating optimized for your application requirements.
To select the right coating, please provide: (1) Operating wavelength, (2) Angle of incidence, (3) Required transmission or reflectivity, (4) Laser power density (if applicable), (5) Operating environment.
Key factors to evaluate when specifying this optical component for your system.
Ensure the material and coating are optimized for your operating wavelength range: UV, Visible, NIR.
40-20 is suitable for most applications. For precision imaging or scattering-sensitive systems, specify 20-10 or better.
Consider temperature, humidity, and mechanical stress when selecting material and coating specifications.
Your specific application may require additional specifications. Contact our engineering team for guidance.
Biocompatible optics for diagnostic and therapeutic medical systems.
Ruggedized optics for aerospace, defense and space applications.
Rugged optics for industrial manufacturing and automation.
Versatile optics for research laboratories and educational institutions.
PhotonEdge supports optical component sourcing, engineering review, and qualified manufacturing through our optical manufacturing network.
Diameter, thickness, and critical dimensions verified per specification
Scratch-dig inspection under calibrated illumination
Spectrophotometric measurement of transmission/reflectance
Inspection documentation available according to project requirements.
Sapphire windows feature extreme hardness and wide optical transmission from UV (190nm) to mid-IR. High acoustic velocity, high temperature resistance, corrosion resistance, and high transparency. Cus...
Standard options include Sapphire. Custom materials available upon request.
Available coatings include AR 350-700nm, Uncoated. Custom coatings available upon request.
Standard catalog items ship within 1-2 weeks. Custom specifications typically require 3-4 weeks.
Yes. We support custom diameter, thickness, wavelength, coating and tolerance requirements. Contact our engineering team for a quote.
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