Abstract

A design algorithm based on a modified minimizing search technique is applied to design a visible antireflection coating for a wide angular incidence with an angle up to 30° from the normal. The design approach consisting of tuning and minimizing operations is effective in refining the antireflective performance and simplifying the design structure of the desired solution. It is shown that the maximum wide angular visible spectral reflectance of minimizing search antireflection coating designs for a three-material 60-layer system is reduced to less than 0.490% with 15–21-layered structures, and the average visible spectral reflectance for each incident angle is reduced to below 0.137%.

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