AR coating

Anti-reflective coatings increase transmission and minimise reflections

One of the most important coatings for optical applications are reflection-reducing coating systems
commonly known as anti-reflective (AR) coatings or anti-reflection coatings. Enhancing transmission efficiency holds paramount importance across numerous applications utilising anti-reflective optical coatings.

We tailor these coatings to specific wavelengths or design them for broad spectral ranges, in accordance with the customer's specifications. This enables us to produce AR coatings optimised for ultraviolet, visible, or infrared wavelengths. The mitigation of surface reflections not only reduces ghosting effects but also amplifies transmission and contrast levels. Depending on the specifications, we employ either single or multi-layer systems. Non-absorbing dielectric layers are used to effectively diminish reflections.

By reducing reflections, disturbing light is avoided and at the same time higher transmission and an improvement in contrast is achieved. AR coatings are often essential for systems with several optical elements, as the AR coatings minimize light losses in optical systems.  

We can apply antireflective coatings multispectral, as broadband or narrowband narrowband coating, but also as a single MgF2 layer.