Designing a Broadband Visible Antireflection Coating by Jumping Search Method

Abstract

A jumping search method is applied to the design of a normal-incidence antireflection coating for the 400–750 nm spectrum regions. A search algorithm that includes jump turning and optimal elimination is successively used to optimize the visible antireflection performance and to simplify the design structure. It is shown that the average visible reflectivity of the jumping search antireflection coating designs of a two-material 40-layer system is reduced to approximately 0.064–0.079%, and the final designs are reduced to 14–16-layered structures.