Knowledge & Service >> Sapphire Windows Properties |
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| Synthetic sapphire windows exhibit outstanding characteristics, including high hardness, exceptional strength, scratch resistance, high temperature resilience, chemical durability, and excellent transmission across a wide bandwidth. |
| Sapphire Windows Properties |
| Optical windows are essential components used as viewports to protect other elements within an optical assembly, instrument, or laser. In certain applications, optical windows must withstand harsh environmental conditions while providing high levels of performance and reliability. Sapphire windows, with their unique properties, are ideal for these demanding applications. |
| Synthetic sapphire, the single crystal form of Al2O3, is one of the hardest materials available, with a Mohs hardness rating of 9. This structural strength allows sapphire optical windows to be manufactured much thinner than other common optical windows, resulting in better transmittance performance. |
| Due to their high thermal stability and excellent thermal conductivity, sapphire windows are suitable for high-power applications. The energy loss in a sapphire window is significantly less than in other common optical windows. |
| Sapphire windows can endure considerably higher temperatures than most optical windows without any degradation. This makes them suitable for applications requiring high temperature resilience. |
| Unlike other materials, sapphire windows do not darken or lose their clarity when exposed to UV light, maintaining their optical performance over time. |
| Sapphire windows are extremely stable and resistant to attack by strong acids, thanks to their high dielectric constant. This chemical durability makes them suitable for use in harsh environments. |
| Finally, sapphire windows offer wide-band transmission from UV to Mid-IR (0.15-5.5m), making them versatile for a range of optical applications. This wide transmission range, combined with their other exceptional properties, ensures sapphire windows provide unmatched performance and reliability. |
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| Benifits of Sapphire Windows |
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Wide band transmission from UV to Mid-IR (0.15-5.5m)
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Stronger than other optical material windows
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Highly resistant to scratching and abrasion (9 Mohs scale)
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Extremely high melting temperature (2030ˇăC)
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Resistant to attack by strong acids
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High thermal stability and excellent thermal conductivity
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| Application of Sapphire Windows |
| All these unique properties make sapphire windows the ideal material for extreme mechanical, chemical, and optical applications. |
| Additionally, sapphire windows can be metalized to create hermetically sealed optics, making them perfect for harsh or vacuum environments. |
