Aluminum

Aluminum

Aluminum is the most commonly used material for the production of mirrors.

Aluminum coating

Aluminum is easy to evaporate (PVD) and is therefore the preferred material for many applications from UV to NIR. It is therefore the most commonly used material for the production of mirrors. However, the reflectivity of aluminum decreases over time. This is due to the formation of oxide on the surface. At the same time, however, this protects the surface from further oxidation.

Aluminum coatings can be easily vapor-deposited and show a uniformly high reflection in the visible range.

Datasheet

Layer structure: Aluminum layer with oxidic protective layer.

Reflection
400 nm R > 80,0 % ± 1,0% AOI 8° r-pol
550 nm R > 90,0 % ± 1,0% AOI 8° r-pol
750 nm R > 80,0 % ± 1,0% AOI 8° r-pol
Coating properties
Adhesion MIL-C-48497 § 4.5.3.1
Humidity MIL-C-48497 § 4.5.3.2
Hardness MIL-C-48497 § 4.5.3.3
Temperature MIL-C-48497 § 4.5.4.1

Application

  • VIS Mirror (Metrology / Astronomy)
  • UV mirror

Do you need more information about aluminum coating?

Please do not hesitate to contact us!

+49 2324 398-401
info@pleiger-laseroptik.de
Aluminum
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