78 citations · 275 across the 17 of their papers we have counts for
19 papers
Asymmetric Negative Refraction in Nonlocal Double-Wire Metamaterials
Tiago A. Morgado, Sylvain Lannebère, Enrico M. Renzi +2
We demonstrate that heterogeneous double-wire metamaterials, comprising two dissimilar and nonconnected wire arrays, enable loss-asymmetric hyperbolic dispersion and strongly asymm…
Symmetry Analysis of the Non-Hermitian Electro-Optic Effect in Crystals
Sylvain Lannebère, Tatiana G. Rappoport, Tiago A. Morgado +2
Here, we investigate how crystal symmetry tailors the non-Hermitian electro-optic effect arising from the Berry curvature dipole. Specifically, we demonstrate the critical influenc…
Non-Hermitian Linear Electro-Optic Effect Through Interactions of Free and Bound Charges
Sylvain Lannebère, Nader Engheta, Mário G. Silveirinha
In recent years, there has been growing interest in non-Hermitian phenomena in low-symmetry conductors, particularly optical gain driven by electro-optic effects. Conventional semi…
Chiral-Gain Photonics
Sylvain Lannebère, David E. Fernandes, Tiago A. Morgado +1
Here, we present an exploratory study of the potential applications of electrically biased materials that possess a nonreciprocal and non-Hermitian electromagnetic response analogo…
Non-Hermitian Linear Electrooptic Effect in 3D materials
Tiago A. Morgado, Tatiana G. Rappoport, Stepan S. Tsirkin +3
Here, we present an in-depth theoretical analysis of the linear electrooptic effect in low-symmetry three-dimensional (3D) conductive materials with large Berry curvature dipoles.…
High Q-factor Fano resonances in coupled wire arrays with bulk structural asymmetry
David E. Fernandes, Sylvain Lannebère, Tiago A. Morgado
In this article we characterize the macroscopic electromagnetic response of a nested wire metamaterial with a high degree of bulk structural asymmetry. The unit cell of the conside…
Exceptional points in transistor-metamaterial inspired transmission lines
David E. Fernandes, Sylvain Lannebère, Tiago A. Morgado +1
Motivated by our recent findings in [Phys. Rev. Lett. 128, 013902, 2022], which introduces a new class of electromagnetic bulk materials whose response is similar to conventional s…
Experimental verification of magnetic near-field channeling using a helical-shaped wire medium lens
Tiago A. Morgado, Guilherme L. João, Ricardo A. M. Pereira +2
We experimentally verify that a magnetic uniaxial wire medium lens consisting of a racemic array of helical-shaped metallic wires may enable channeling the normal component of the…
Engineering transistor-like optical gain in two-dimensional materials with Berry curvature dipoles
Tatiana G. Rappoport, Tiago A. Morgado, Sylvain Lannebère +1
Semiconductor transistors are essential elements of electronic circuits as they enable, for example, the isolation or amplification of voltage signals. While conventional transisto…
Nonreciprocal and non-Hermitian material response inspired by semiconductor transistors
Sylvain Lannebère, David E. Fernandes, Tiago A. Morgado +1
Here, inspired by the operation of conventional semiconductor transistors, we introduce a novel class of bulk materials with nonreciprocal and non-Hermitian electromagnetic respons…
Experimental Verification of Ill-defined Topologies and Energy Sinks in Electromagnetic Continua
David E. Fernandes, Ricardo A. M. Pereira, Sylvain Lannebère +2
In this article, it is experimentally verified that nonreciprocal photonic systems with a continuous translation symmetry may have an ill-defined topology. The topological classifi…
A graphene inspired electromagnetic superlens
Sylvain Lannebère, Mário G. Silveirinha
In this paper we propose a new paradigm to create superlenses inspired by n-p-n junctions of graphene. We show that by adjoining a n-type region and a p-type region with a crystal…
First Principles Homogenization of Periodic Metamaterials and Application to Wire Media
Sylvain Lannebère, Tiago A. Morgado, Mário G. Silveirinha
Here, we present an overview of a first principles homogenization theory of periodic metamaterials. It is shown that in a rather general context it is possible to formally introduc…
Photonic analogues of the Haldane and Kane-Mele models
Sylvain Lannebère, Mário G. Silveirinha
The condensed matter Haldane and Kane-Mele models revolutionized the understanding of what is an "insulator", as they unveiled novel classes of media that behave as metals near the…
Link between the photonic and electronic topological phases in artificial graphene
Sylvain Lannebère, Mário G. Silveirinha
In recent years the study of topological phases of matter has emerged as a very exciting field of research, both in photonics and in electronics. However, up to now the electronic…
Negative spontaneous emission by a moving two-level atom
Sylvain Lannebère, Mário G. Silveirinha
In this paper we investigate how the dynamics of a two-level atom is affected by its interaction with the quantized near field of a plasmonic slab in relative motion. We demonstrat…
Wave Instabilities and Unidirectional Light Flow in a Cavity with Rotating Walls
Sylvain Lannebère, Mário G. Silveirinha
We investigate the conditions for the emergence of wave instabilities in a vacuum cavity delimited by cylindrical metallic walls under rotation. It is shown that for a small vacuum…
Optical meta-atom for localization of light with quantized energy
Sylvain Lannebère, Mário G. Silveirinha
The capacity to confine light into a small region of space is of paramount importance in many areas of modern science. Here, we suggest a mechanism to store a quantized "bit" of li…
Effective Hamiltonian for electron waves in artificial graphene: A first principles derivation
Sylvain Lannebère, Mário G. Silveirinha
We propose a first principles effective medium formalism to study the propagation of electron waves in semiconductor heterostructures with a zero-band gap. Our theory confirms that…