Thin-film optical coating that controls light transmission and reflection in beam splitters.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Surface Quality | Scratch-Dig 40-20 | |
| Damage Threshold | >5 J/cm² for pulsed lasers | |
| Wavelength Range | 400-1100 nm | |
| Coating Thickness | 0.5-5 μm | |
| Environmental Durability | MIL-C-48497 or equivalent | |
| Transmission/Reflection Ratio | 50/50, 70/30, or custom |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
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Dielectric coatings use transparent materials and interference effects for high efficiency and low absorption, while metallic coatings rely on metals like aluminum or silver for broader spectral coverage but with higher absorption and lower damage thresholds.
They are typically applied using vacuum deposition techniques such as physical vapor deposition (PVD) or chemical vapor deposition (CVD), which allow precise control over layer thickness and composition.
Key factors include material refractive indices, layer thickness, number of layers, deposition quality, substrate surface preparation, and environmental conditions like humidity and temperature.
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