3 papers
physics.optics2025
Gain-Momentum Locking in Chiral-Gain Media
João C. Serra, Nader Engheta, Mário G. Silveirinha
Conventional optical materials are characterized by either a dissipative response, which results in polarization-independent absorption, or by a gain response that leads to wave am…
physics.optics2025
Engineering Topological Phases with a Traveling-Wave Spacetime Modulation
João C. Serra, Mário G. Silveirinha
Time-variant systems have recently garnered considerable attention due to their unique potentials in manipulating electromagnetic waves. Here, a novel class of topological spacetim…
physics.optics2024
Influence of Spatial Dispersion in the Topological Edge States of Magnetized Plasmas
João C. Serra, Mário G. Silveirinha
Conventional Chern insulators are two-dimensional periodic structures that support unidirectional edge states at the boundary, while the wave propagation in the bulk regions is for…