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Design of Wide-Angular-Incidence Antireflection Coating over Visible Spectral Region

A jumping search algorithm is applied to achieve a broadband visible antireflection coating design for a wide-angular-incidence with an incident angle of up to 45° from the normal. It is shown that the maximum wide-angular visible spectral reflectance, obtained by different types of jumping search for a two-material 20-layer system, is reduced to less than 0.869% with 14-layer structures, and the maximum average visible spectral reflectance for incident angle lying in the range of 0–45° is reduced to below 0.646%.