234 citations · 396 across the 11 of their papers we have counts for
11 papers
Dirac Points Embedded in the Continuum
Pilar Pujol-Closa, Lluis Torner, David Artigas
Dirac points (DP) in Hermitian systems play a key role in topological phenomena. Their existence in non-Hermitian systems is then desirable, but the addition of loss or gain transf…
Surface Bound States in the Continuum in Dyakonov Structures
Samyobrata Mukherjee, David Artigas, Lluis Torner
Surface bound states in the continuum (SBICs) have been found to occur in diverse settings, but so far always at the interface of non-homogeneous media, such as discrete lattices o…
Unidirectional guided resonances in anisotropic waveguides
Samyobrata Mukherjee, Jordi Gomis-Bresco, David Artigas +1
We show that anisotropic planar anti-guiding waveguide structures with two radiation channels towards the surrounding cladding materials can support unidirectional guided resonance…
Solitary Spectrally-Discrete Bound States in the Continuum in an Open System
Samyobrata Mukherjee, Jordi Gomis-Bresco, David Artigas +1
Bound states in the continuum (BICs) exist in a variety of physical systems where they appear as lossless propagating states surrounded by radiating modes. However, in the case of…
Slow light mediated by mode topological transitions in hyperbolic waveguides
Pilar Pujol-Closa, Jordi Gomis-Bresco, Samyobrata Mukherjee +3
We show that symmetric planar waveguides made of a film composed of a type II hyperbolic metamaterial, where the optical axis (OA) lays parallel to the waveguide interfaces, result…
Angular Control of Anisotropy-Induced Bound States in the Continuum
Samyobrata Mukherjee, Jordi Gomis-Bresco, Pilar Pujol-Closa +2
Radiation of leaky modes existing in anisotropic waveguides can be cancelled by destructive interference at special propagation directions relative to the optical axis orientation,…
Transition from Dirac points to exceptional points in anisotropic waveguides
Jordi Gomis-Bresco, David Artigas, Lluis Torner
We uncover the existence of Dirac and exceptional points in waveguides made of anisotropic materials, and study the transition between them. Dirac points in the dispersion diagram…
Anisotropy-induced photonic bound states in the continuum
Jordi Gomis-Bresco, David Artigas, Lluis Torner
Bound states in the continuum (BICs) are radiationless localized states embedded in the part of the parameter space that otherwise corresponds to radiative modes. Many decades afte…
Topological properties of bound-states-in-the-continuum in geometries with broken anisotropy-symmetry
Samyobrata Mukherjee, Jordi Gomis-Bresco, Pilar Pujol-Closa +2
Waveguiding structures made of anisotropic media support bound states in the continuum (BICs) that arise when the radiation channel of otherwise semi-leaky modes is suppressed. Hit…
Polarization conversion spectroscopy of hybrid modes
A. Yu. Nikitin, David Artigas, Lluis Torner +2
Enhanced polarization conversion in reflection for the Otto and Kretschmann configurations is introduced as a new method for hybrid-mode spectroscopy. Polarization conversion in re…
Surface waves at the interface between left-handed and birefringent materials
Lucian-Cornel Crasovan, Osamu Takayama, David Artigas +3
We theoretically investigate the existence and properties of hybrid surface waves forming at interfaces between left-handed materials and dielectric birefringent media. The existen…