Functional Electromagnetic Signatures from Complex Volume Systems and Topological Material Properties

This scientific paper is an outcome of the MARIE project (for more information, see https://trrmarie.de) [M03]. The contribution reflects our ongoing and planned research in the electromagnetic analysis and functionalization of complex surface systems and volume scattering structures at mm-wave up to THz frequencies. The research relies significantly upon the development of an ultra-fast, full-wave, electromagnetic (EM) simulator based on the Recursive Aggregated Centered T-Matrix Algorithm (RACTMA). Building on this foundation, we are now focusing on the functionalization of EM responses and signatures to enable the analysis and synthesis of reconfigurable volumetric structures through ultra-fast inverse problem solutions. An inverse solution is given in the framework of plant stem monitoring. This effort involves accelerating RACTMA via an n-layer T-matrix algorithm and leveraging massive parallelization in CPU/GPU implementations. The enhanced RACTMA frame-work will incorporate novel topological material representations, such as multiferroic and ferro-electric properties, to enable new EM responses and unlock unexpected device functionalities. A target application includes outdoor relaying using microfluidic reconfigurable scattering posts as realizations of reconfigurable intelligent volumes (RIV).