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| AR-Coated Windows Graph
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Windows are frequently used in optical systems to separate the environment in one part of the system from another, such as to seal vacuum or high-pressure cells. Because the infrared transmitting material has a high index of refraction, an anti-reflection coating is typically applied to windows to minimize losses due to reflections.
For guidelines about calculating the proper thickness for a window to withstand a given pressure, see our Pressure Loading tutorial.
Below is the typical transmission of an AR coated, ZnSe window at 0° incidence:
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Diameter: +0.000”-0.005”
Thickness: +0.005“-0.010”
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Edge Thickness Variation (ETV)
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Clear Aperture (polished)
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Surface Figure (power/irregularity) at 0.63µm
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AR Coating Reflectivity per Surface at 10.6µm
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185217 |
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568604 |
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162879 |
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457172 |
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735199 |
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617035 |
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834076 |
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184651 |
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883636 |
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243559 |
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616847 |
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AR coated windows are available in other substrates and as uncoated windows. We also offer AR coatings at other wavelengths or wavelength bands. Contact a II-VI sales representative for exact specifications. |
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Toll Free USA and Canada 888.558.1504
AR-Coated Windows
Link to II-VI corporate website