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| Coad | 669638 | Substrate | UVFS | |
| Type | Metallic Coated Flat Mirror | Diameter(mm) | 25.40 | |
| Clear Aperture | 90% CA | Diameter Tolerance | +0.0/-0.1mm | |
| Parallelism | - | Thickness(mm) | 6.00 | |
| Quantity | 1 | Thickness Tolerance | ±0.25mm | |
| Surface Quality S1 | 40-20 | Wavelength(nm) | 480 - 20000 | |
| Surface Quality S2 | Fine Polishing | AOI(°) | 0 - 45 | |
| Inclination Angle | - | Surface Flatness | λ/10@633nm | |
| Laser Damage Threshold | 0.17J/cm2@1030nm，290fs，100Hz，Ø20.116μm (100 Pulses) | Coating Type | Silver Coating (with Silicon Dioxide Protection Layer) | |
| Coating Specifications | Ravg>96%@480-2000nm,Ravg>97.5%@2000-20000m | |||
Metal-coated mirrors are highly suitable for beam deflection in broadband light sources, offering high reflectance across a wide spectral range. However, metallic coatings are prone to oxidation, discoloration, or peeling in high-humidity environments. To prevent this, LBTEK’s metallic-coated mirrors are coated with a layer of silicon dioxide protection film, isolating the metal coating from direct contact with air. While the protective layer helps prevent silver oxidation, silver-coated mirrors should still not be used in high-humidity environments. They must be used and stored in conditions with minimal humidity at room temperature. LBTEK offers metallic-coated mirrors with aluminum, silver, and gold coatings.
LBTEK offers D-shaped silver-coated mirrors, which provide high reflectance across a broad spectral range, making them suitable for selecting one beam from two beams with a small angular separation. Additionally, the back of the straight edge of the mirror has a 45° wedge-shaped bevel, facilitating beam splitting for diverging or converging beams.
However, metallic coatings are prone to oxidation, discoloration, or peeling in high-humidity environments. To mitigate this, LBTEK’s metallic-coated mirrors are coated with a layer of silicon dioxide protection film, isolating the metal coating from direct contact with air. While the protective layer helps prevent silver oxidation, silver-coated mirrors should still not be used in high-humidity environments and must be stored and used in conditions with minimal humidity at room temperature.
When handling silver-coated mirrors, it is recommended to wear latex gloves or finger cots to prevent oils and residues from contaminating the optical surface. Care should be taken when handling the mirrors to avoid touching the mirror surface and edges.
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