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
Any other standard substrate can be coated with this type of coatings!
Dual Laser Line reflecting mirrors (DHR) 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
Substrate Dimension Tolerance
+0.0, -0.1 mm
Substrate Wavefront Distortion
<λ/8 (<λ/4 for curved surfaces)
Substrate Surface Quality
20-10 S-D (40-20 S-D for curved surfaces)
Coating Adhesion and Durability
Per MIL-C-675A
Clear Aperture
>90% of diameter
Measured Reflectivity
R>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 mirrors
Wavelength, nm
Substrate material
Ordering Code for AOI = 0°
Ordering Code for AOI = 45°
Ordering Code for AOI = 0°
Ordering Code for AOI = 45°
Ø12.7 mm
Ø25.4 mm
266+532
UVFS
14DM-05-DHR1-0-2
14DM-05-DHR1-45-2
14DM-1-DHR1-0-2
14DM-1-DHR1-45-2
343+1030
UVFS
14DM-05-DHR2-0-2
14DM-05-DHR2-45-2
14DM-1-DHR2-0-2
14DM-1-DHR2-45-2
355+532
UVFS
14DM-05-DHR3-0-2
14DM-05-DHR3-45-2
14DM-1-DHR3-0-2
14DM-1-DHR3-45-2
355+1064
UVFS
14DM-05-DHR4-0-2
14DM-05-DHR4-45-2
14DM-1-DHR4-0-2
14DM-1-DHR4-45-2
400+800
UVFS
14DM-05-DHR6-0-2
14DM-05-DHR6-45-2
14DM-1-DHR6-0-2
14DM-1-DHR6-45-2
515+1030
UVFS
14DM-05-DHR8-0-2
14DM-05-DHR8-45-2
14DM-1-DHR8-0-2
14DM-1-DHR8-45-2
532+1064
UVFS
14DM-05-DHR9-0-2
14DM-05-DHR9-45-2
14DM-1-DHR9-0-2
14DM-1-DHR9-45-2
PLEASE NOTE: thickness of UVFS Ø12.7 mm and Ø25.4 mm DHR mirrors is 5 mm;
