4 papers
Driven Time Crystal in Low-Symmetry ENZ Conductors
Mario G. Silveirinha
In recent years, epsilon-near-zero (ENZ) materials have attracted a great deal of attention in nonlinear optics, as they combine field enhancement with strong, ultrafast nonlineari…
Can crystal symmetry reshape ENZ photonics?: Opinion
Mario G. Silveirinha
Over the last decade, epsilon-near-zero (ENZ) photonics has been driven by the search for lower losses and stronger nonlinear responses. Here, I ask a different question: can cryst…
Thermodynamic Paradox and Non-Hermitian Topological Singularities
Mario G. Silveirinha
Unidirectional modes in magnetically biased electromagnetic systems have long been associated with a thermodynamic paradox: the absence of counter-propagating channels may produce…
Polarization Inversion with Symmetric Scatterers
Roee Geva, Mário G. Silveirinha, Raphael Kastner
We demonstrate, both theoretically and experimentally, that arbitrary scatterers preserving parity-time-duality () symmetry inherently…