High Reflection (HR) coatings, including high reflection dielectric coatings and Metallic coatings, provide high reflection in some wavelength range, and are widely used in laser system and other optical elements. HR coating provides more effective and efficient spectral performance due to the low absorption properties. These mirror coatings can also be further customized to provide additional high pass or low pass wavelength performance in addition to the specified reflection band.
Single Wavelength HR Coatings
Substrate: fused silica, BK7
Surface Figure: < λ/10 @ 632.8nm
Surface Quality: 40-20
Chamfer: 0.5mm, 45°
Coating Material: Electron beam deposited dielectric multi-layers
Incident: 0°,45°
Clear Aperture: > Central 85% of diameter
| Wavelength (nm) | Residual Reflectance |
| 350-650 | <0.5% |
| 420-670 | <0.5% |
| 650-1050 | <0.5% |
| 1050-1550 | <0.5% |
Dual Wavelength HR Coatings
Substrate: fused silica, BK7
Surface Figure: < λ/10 @ 632.8nm
Surface Quality: 40-20
Chamfer: 0.5mm, 45°
Coating Material: Electron beam deposited dielectric multi-layers
Incident: 0°,45°
Clear Aperture: > Central 85% of diameter
| Wavelength (nm) | Residual Reflectance |
| 266/532 | 99%/99.5% |
| 351/1053 | 99%/99.5% |
| 532/1064 | 99%/99.5% |
| 6328/1064 | 99%/99.5% |
