Silicon Optical Windows
for Infrared Applications
Global Optics supplies custom silicon optical windows manufactured exactly to customer drawings and specifications.
With no minimum order quantity and full UK inspection prior to dispatch, we support everything from one-off prototypes to production supply.
Silicon is commonly used in infrared optical systems, offering a robust and cost-effective solution for applications where transmission in the IR range is required.
Typical response time: within 24–48 hours depending on specification.
All components are inspected in the UK prior to dispatch to ensure they meet specification.
What We Need to Provide a Quotation
Providing the following information allows us to quote accurately and avoid delays:
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Material (e.g Silicon)
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Diameter / size
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Thickness
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Quantity
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Drawing or specification
When to Use Silicon Optical Windows
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Infrared optical systems
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Thermal imaging applications
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Cost-sensitive IR projects
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Industrial IR sensing and monitoring
When Not to Use Silicon
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Visible light applications (BK7 or fused silica more suitable)
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High strength or abrasive environments (sapphire more suitable)
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Applications requiring UV transmission
Why Choose Silicon Optical Windows
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Cost-effective material for infrared applications
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Good transmission in IR wavelengths
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Robust and suitable for industrial environments
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Practical alternative to higher-cost IR materials
Applications
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Thermal imaging systems
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Infrared sensors
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Industrial monitoring systems
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Analytical equipment
Material Comparison
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Compared to CaF₂, silicon is more robust and cost-effective but has a narrower transmission range.
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Compared to sapphire, silicon is more suitable for infrared applications but offers lower mechanical strength.
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Compared to ZnSe, silicon is typically a more economical option for certain IR systems.
Custom Made to Drawing
All silicon optical windows are manufactured to customer specifications, including size, thickness, surface quality and tolerances.
We supply components strictly to drawing and support both prototype and production quantities.