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Home > Coatings Section > DHR - Dual Laser Line Reflecting Coatings
The coatings are designed to achieve the highest possible reflectivity at two specific laser line wavelengths at normal or 45 degrees incidence
Coatings are provided by Ion Beam Sputtering (IBS) or Electron beam evaporation with/without Ion assistance coating techniques

Dual Laser Line reflecting coatings provide an optimized performance at two certain wavelengths and certain angle of incidence (AOI). These multilayer coating stacks helps 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.

Standard Specifications
Coating Adhesion and DurabilityPer MIL-C-675A
Clear Aperture>90% of diameter
Measured ReflectivityR>99.5% @ 0°
Rs>99.3% and
Rp>98.5% @ 45°
Laser Damage Threshold>3-5 J/cm2 for 10 ns
pulses @ 1064 nm

Dual Laser Line Reflecting Coatings
Wavelength, nmReflectivity at normal incidence, %Coating
Code
266+532>99.0DHR1
343+1030>99.5DHR2
355+532>99.5DHR3
355+1064>99.5DHR4
399+556>99.5DHR5
400+800>99.5DHR6
426+852>99.5DHR7
515+1030>99.5DHR8
532+1064>99.5DHR9
1064+1319>99.5DHR10
 

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