Figure 8
From: All-Dielectric Multilayer Cylindrical Structures for Invisibility Cloaking
(a) General flow of a genetic algorithm and (b) crossover process applied to a three-layer structure (two coating shells have four genes, two for radii and two for their materials).
Chromosomes of parents are divided into two parts (head and tail) which are then swapped to generate offspring having their properties. The crossover point is chosen randomly. Tm and Gn indicate genes of chromosomes and n'th generation, respectively36.
