Visible/NIR (Broad Band Multilayer)
Broadband Anti-Reflection coatings substantially reduce surface reflectance over a broad spectral region. These coatings are well suited for the steeply curved surfaces of high numerical aperture lenses, or for applications in which it is necessary to vary the *angle of incidence.
The multilayer coating can reach higher transmissions for broadband wavelength make this different from the single layer MgF2 broadband antireflection coating. This makes it ideal for a wide range of multi-wavelength laser and white light applications.
AR coating is preferred over MgF2 for visible applications. Other antireflection coatings include visible/near-infrared (VIS-NIR) broadband antireflection coating specially optimized to minimize reflections for visible and near-infrared wavelengths.
*Please note that the wavelength range and reflectivity of the coating change with the incident angle.
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