Dual Laser Line reflecting mirrors (DHR)
Dual Laser Line reflecting mirrors (DHR)
| Substrate dimension tolerance | +0.0, -0.1 mm |
| Substrate wavefront distortion | < λ/8 (< λ/4 for curved surfaces) |
| Substrate surface quality | 20-10 SD; 40-20 SD for curved faces |
| Coating Adhesion and Durability | Per MIL-C-675A |
| Clear Aperture | >90% of diameter |
| Measured Reflectivity | R>99,5% if designed AOI=0deg; Rs>99,3% and Rp>98,5% if designed AOI=45deg |
| Laser Damage Threshold | >3-5 J/cm2 for 10 ns pulses @1064nm |
These multilayer coatings are stacks intended to achieve the highest possible reflectivity at two specific laser line wavelengths at normal or 45 degrees incidence. Laser line high reflectivity coatings are intended for external beam manipulation applications where even slight losses may be intolerable.
Coatings are provided by Ion Beam Sputtering (IBS) or Electron beam evaporation with/without Ion assistance coating techniques.
Looking Low GDD Dual HR mirrors for femtosecond laser application?
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The coatings are designed to achieve the highest possible reflectivity at two specific laser line wavelengths at normal or 45 degrees incidence |
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