Stochastic optimization of low-loss optical negative-index metamaterial

• DOI: 10.1364/josab.24.000a34
• Publication Date: 2007-10-02T19:42:41Z
• Authors: Alexander V. Kild...; Uday K. Chettiar; Zhengtong Liu; Vladimir M. Shalaev; Do-Hoon Kwon; Zikri Bayraktar; Douglas H. Werner
• Keywords: 0202 electrical engineering, electronic engineering, information engineering; 02 engineering and technology

Optical metamaterial consisting of metal-dielectric composites creates a complicated system that is not amenable to analytical solutions. This presents challenge in optimizing these intricate systems. We present the application three nature-inspired stochastic optimization techniques conjunction with fast numerical electromagnetic solvers yield satisfies required design criterion. In particular, tools (genetic algorithm, particle swarm optimization, and simulated annealing) are used for designing low-loss optical negative index metamaterial. A refractive around −0.8+0.2i obtained at wavelength 770 nm. The algorithm found be most efficient this case.