2 citations · 2 across the 1 of their papers we have counts for
6 papers
Synthetic Axion Response with Spacetime Crystals
Filipa R. Prudêncio, Mário G. Silveirinha
Here, we show that spacetime modulations provide an exciting route to realize complex nonreciprocal couplings, and in particular the elusive axion response. We develop an analytica…
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…
Asymmetric Cherenkov Emission in a Topological Plasmonic Waveguide
Filipa R. Prudêncio, Mário G. Silveirinha
Here, we investigate the Cherenkov emission by an array of moving electric charges in the vicinity of a topologically nontrivial gyrotropic material. It is shown that the nonrecipr…
Asymmetric Band Diagrams in Photonic Crystals with a Spontaneous Nonreciprocal Response
Filipa R. Prudêncio, Sérgio A. Matos, Carlos R. Paiva
We study the propagation of electromagnetic waves in layered photonic crystals formed by materials with a spontaneous nonreciprocal response, such as Tellegen (axion) media or topo…