Knight Optical provides a range of high quality infrared optical windows specifically suited to infrared wavelengths for a host of IR applications. A range of materials are available for use from 2.6µm to 45µm, however some materials such as Calcium Fluoride work efficiently in deep UV
| Name | Type | Diameter (mm) | Length (mm) | Width (mm) | Thickness (mm) | Coating | Drilled | Material | Price | Buy |
| WSI2505 | Float-Zone Grade | 25.4 | 0.5 | Uncoated | Silicon |
US$74.50
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| WSI2504 | Czochralski Grade | 25.4 | 4 | Uncoated | Silicon |
US$74.50
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| WSI2502 | Czochralski Grade | 25 | 2 | Uncoated | Silicon |
US$61.99
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| WSI2501 | Czochralski Grade | 25.4 | 1 | Uncoated | Silicon |
US$49.62
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| WSI2500 | Float-Zone Grade | 25.4 | 3 | Uncoated | Silicon |
US$87.57
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| WSI2301 | Float-Zone Grade | 25.4 | 1 | Uncoated | Silicon |
US$74.50
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| WSI1501 | Float-Zone Grade | 15 | 1 | Uncoated | Silicon |
US$49.62
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| WSI1301 | Float-Zone Grade | 13 | 1 | Uncoated | Silicon |
US$37.25
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| WSI1201 | Float-Zone Grade | 12 | 1 | Uncoated | Silicon |
US$37.25
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| WSI1005 | Czochralski Grade | 10 | 0.5 | Uncoated | Silicon |
US$37.25
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