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Title: Directional Invisibility of Elliptical Shaped All Dielectric Structure Induced by Evolutionary Optimization Approach
Authors: Babayiğit, Ceren
Bor, E.
Kurt, Hamza
Staliunas, Kestutis
Turduev, Mirbek
Keywords: Invisibility cloaks
genetic algorithm
inhomogeneous media
Issue Date: Sep-2018
Publisher: IEEE Computer Society
Source: Babayiğit, C., Bor, E., Kurt, H., Staliunas, K., and Turduev, M. (2018, July). Directional Invisibility of Elliptical Shaped All Dielectric Structure Induced by Evolutionary Optimization Approach. In 2018 20th International Conference on Transparent Optical Networks (ICTON) (pp. 1-4). IEEE.
Series/Report no.: International Conference on Transparent Optical Networks
Abstract: This study presents an optimal design of directional optical cloaking device based on evolutionary optimization approach. A cylindrical shaped perfectly electric conductor (PEC) material is selected as an object to be cloaked inside the proposed structure. Three-dimensional finite-difference time-domain method is combined with an optimization algorithm in order to numerically calculate and iteratively suppress the scattered fields due to the cylindrical shaped large ideal metallic scattering object. In particular, as optimization method Genetic Algorithm (GA) is employed. Here, optimization algorithm intelligently modulates the effective refractive index of the cloaking region by minimizing diffraction of the scattered field distribution in free space. The optimized cloaking structure composed of binary high refractive index (nPLA = 1.55) and low refractive index (nair = 1) elementary cells that are distributed in the optimization region. The structural and optical parameters of the proposed device are selected to be feasible in terms of fabrication by 3D printing technique and to make possible experimental verification at microwave frequencies in the future. © 2018 IEEE.
ISBN: 978-153866604-3
ISSN: 21627339
Appears in Collections:Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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