Metallic Coatings

Protected metallic coatings provide a moderate level of reflection over a very broad spectral range and are widely used as mirrors. These coatings are protected by a thin layer of dielectric material in order to make them durable. Enhanced metallic coatings provide greater reflection across the operating band width. These coatings are enhanced by adding a multilayer dielectric stack.

Metal coatings will modify the state of polarization of an incident beam of light and are therefore inappropriate for most polarization sensitive applications.

Specification :

Wavelength, nm Average Reflection, % Type
200-IR 88 UV enhanced aluminium
450-650 91 VIS enhanced aluminium
300-IR 86 Protected aluminium
400-IR 95 Protected silver

 

 

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