Wave Engineering with Active Metamaterials: Nonreciprocity, Bandwidth Enhancement, and Analog Computing
Modern technological systems are subject to escalating demands for miniaturization, speed, adaptability, and energy efficiency. Conventional design approaches are increasingly approaching
fundamental performance limits. Overcoming these constraints requires adopting novel material platforms that are not subject to the constraints of conventional materials. To this end, time-modulated, tunable, and nonlinear metamaterials are particularly promising, as they enable fundamentally new wave phenomena. In this talk, I will present our recent theoretical and experimental advances toward the development of electromagnetic devices with unprecedented capabilities for communication and computing systems based on active metamaterials. I will discuss the fundamental physics of time modulated media and demonstrate how they can be engineered to overcome symmetry constraints and bandwidth limitations inherent to passive
devices. I will then highlight our progress in linear analog computing with metamaterials, with particular emphasis on the design of programmable platforms. Finally, I will present recent results on dynamic effects in nonlinear metamaterials and discuss how these phenomena may enable a new generation of wave-based computing architectures.
Bio: Dimitrios Sounas is an Associate Professor in the Department of Electrical and Computer Engineering at Wayne State University. He focuses on the theory and design of active metamaterials, with major contributions in the development of nonreciprocal devices. He has authored or co-authored over 100 papers in peer-reviewed journals, more than 180 conference abstracts, 6 patents, and he has received more than 15,000 citations.
Dimitrios is a Senior Member of IEEE. He is the recipient of the 2020 EurAAP Leopold B. Felsen Award from the European Antennas and Propagation Society and the 2021 Brillouin Medal from the International Phononics Society. He has chaired and organized various sessions in international symposia. He is an Associate Editor for the IEEE Antennas and Propagation Magazine, a guest editor for Optical Materials Express, and a reviewer for more than 20 engineering and physics journals.