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Electromagnetic wave propagation through complex structures

Abstract

The continuous increase of the complexity of current electromagnetic devices, observed particularly since the advent of metamaterials (and of its bidimensional counterpart, known as metasurfaces) is due, in essence, to the advances of the fabrication processes (including fast prototyping), and to the modern and more comprehensive numerical simulation tools. Unfortunately, the Metamaterials Group (GMeta, one of the most equipped and productive in Brazil) does not have a computational infrastructure capable of attending the needs of its members in a medium range forecast and, most importantly, that guarantees to its members the possibility of continuing to produce research in its state-of-the-art. Therefore, the main goal of the present proposal is to modernize the GMeta's computational infrastructure and, to do so, it will follow two main threads, namely: 1) with respect to research infrastructure, to modernize/update our High-Performance Computational Center by acquiring new software licenses of the finite elements-based electromagnetic simulator COMSOL Multiphysics and to acquire a microwave signal generator, and 2) regarding innovative research and development, to propose new state-of-the-art electromagnetic devices in difference frequency ranges. The commercial software intended for this proposal will allow an invaluable productivity gain in the analysis of several electromagnetic problems (besides being a valuable benchmark to validate the several applications current under development in the Group). Therefore, we expect several original contributions with this proposal in different frequency ranges, such as microwave, THz, and optical, with innovative applications targeting diffractive optics (imaging, flat optics, holography, beam manipulation), electromagnetic forces, sensing, etc. It is important to emphasize that these applications are already under way, and that this proposal involves all Professors, students, and researchers of the Metamaterials Group. (AU)

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