18 citations · 39 across the 9 of their papers we have counts for
5 papers · 1 filter
Topological Chiral-Gain in a Berry Dipole Material
Filipa R. Prudêncio, Mário G. Silveirinha
Recent studies have shown that non-equilibrium optical systems under static electric fields offer a pathway to realize chiral gain, where the non-Hermitian response of a material i…
Replicating Physical Motion with Minkowskian Isorefractive Spacetime Crystals
Filipa R. Prudêncio, Mário G. Silveirinha
Here, we show that isorefractive spacetime crystals with a travelling-wave modulation may mimic rigorously the response of moving material systems. While generic spacetime crystals…
First Principles Calculation of the Topological Phases of the Photonic Haldane Model
Filipa R. Prudêncio, Mário G. Silveirinha
Photonic topological materials with a broken time reversal symmetry are characterized by nontrivial topological phases, such that they do not support propagation in the bulk region…
First Principles Calculation of Topological Invariants of non-Hermitian Photonic Crystals
Filipa R. Prudêncio, Mário G. Silveirinha
The Chern topological numbers of a material platform are usually written in terms of the Berry curvature, which depends on the normal modes of the system. Here, we use a gauge inva…
Asymmetric Electron Energy Loss in Drift-Current Biased Graphene
Filipa R. Prudêncio, Mário G. Silveirinha
The electric drift current bias was recently introduced as a new paradigm to break the Lorentz reciprocity in graphene. Here, we study the impact of the nonreciprocal response in t…