Abstract

This letter proposes a new method for designing photonic crystal (PhC) filters. The method is proposed while designing novel superdefect PhC filters with three and five ellipse-shaped rods. The main idea of the method is to formulate the optical filter design problem as an optimization problem and to solve it by single-objective optimization techniques. This method bypasses discovering the complex relationship between the output spectral transmission performance and the radii of rods. The results demonstrate the merits of the method in facilitating the design process of the PhC filters and finding high-performance designs.

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