A genetic algorithm based procedure to retrieve effective parameters of planar metamaterial samples

Simone Tricarico; Filiberto Bilotti; Lucio Vegni

doi:10.1117/12.820648

12 May 2009 A genetic algorithm based procedure to retrieve effective parameters of planar metamaterial samples

Simone Tricarico, Filiberto Bilotti, Lucio Vegni

Proceedings Volume 7353, Metamaterials IV; 73530H (2009) https://doi.org/10.1117/12.820648
Event: SPIE Optics + Optoelectronics, 2009, Prague, Czech Republic

Abstract

In this contribution, we present the employment of a Genetic Algorithm (GA) based procedure to retrieve the effective permittivity and permeability of planar metamaterial samples. The approach used here is the same of standard Transmission/Reflection (TR) techniques, consisting in extrapolating the sample properties by inversion of its scattering coefficients. The proposed procedure makes use of parametric models for describing the inherently dispersive behavior of the involved materials. This approach eliminates the anomalous behavior of most of the commonly used inversion techniques, providing a consistent representation of the material in the working frequency range. The transition to bulk effective parameters is also investigated determining a proper sample thickness assuring the validation of the homogenization procedure.

Citation Download Citation

Simone Tricarico, Filiberto Bilotti, and Lucio Vegni "A genetic algorithm based procedure to retrieve effective parameters of planar metamaterial samples", Proc. SPIE 7353, Metamaterials IV, 73530H (12 May 2009); https://doi.org/10.1117/12.820648

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