Light in correlated disordered media

K Vynck, R Pierrat, R Carminati, LS Froufe-Pérez… - Reviews of Modern …, 2023 - APS
The optics of correlated disordered media is a conceptually rich research topic emerging at
the interface between the physics of waves in complex media and nanophotonics. Inspired …

Subradiance in a large cloud of cold atoms

W Guerin, MO Araújo, R Kaiser - Physical review letters, 2016 - APS
Since Dicke's seminal paper on coherence in spontaneous radiation by atomic ensembles,
superradiance has been extensively studied. Subradiance, on the contrary, has remained …

Non-Hermitian Rosenzweig-Porter random-matrix ensemble: Obstruction to the fractal phase

G De Tomasi, IM Khaymovich - Physical Review B, 2022 - APS
We study the stability of nonergodic but extended (NEE) phases in non-Hermitian systems.
For this purpose, we generalize the so-called Rosenzweig-Porter random-matrix ensemble …

Pseudogap and Anderson localization of light in correlated disordered media

R Monsarrat, R Pierrat, A Tourin, A Goetschy - Physical Review Research, 2022 - APS
Among the remarkable scattering properties of correlated disordered materials, the origin of
pseudogaps and the formation of localized states are some of the most puzzling features …

Localization of scattering resonances in aperiodic Vogel spirals

F Sgrignuoli, R Wang, FA Pinheiro, L Dal Negro - Physical Review B, 2019 - APS
By using the dyadic Green's matrix spectral method, we demonstrate that aperiodic
deterministic Vogel spirals made of electric dipoles support a light localization transition in …

Imaginary gap-closed points and dynamics in a class of dissipative systems

S Ma, H Lin, J Pi - Physical Review B, 2024 - APS
We investigate imaginary gap-closed (IGC) points and their associated dynamics in
dissipative systems. In a general non-Hermitian model, we derive the equation governing …

Population of collective modes in light scattering by many atoms

W Guerin, R Kaiser - Physical Review A, 2017 - APS
The interaction of light with an atomic sample containing a large number of particles gives
rise to many collective (or cooperative) effects, such as multiple scattering, superradiance …

Structural and spectral properties of deterministic aperiodic optical structures

L Dal Negro, R Wang, FA Pinheiro - Crystals, 2016 - mdpi.com
In this comprehensive paper we have addressed structure-property relationships in a
number of representative systems with periodic, random, quasi-periodic and deterministic …

Photon-mediated dipole-dipole interactions as a resource for quantum science and technology in cold atoms

HH Jen - arxiv preprint arxiv:2410.20665, 2024 - arxiv.org
Photon-mediated dipole-dipole interactions arise from atom-light interactions, which are
universal and prevalent in a wide range of open quantum systems. This pairwise and long …

Aperiodicity is more effective than disorder in localizing electromagnetic waves

LA Razo-López, GJ Aubry, FA Pinheiro… - Optical Materials …, 2024 - opg.optica.org
Strong localization of electromagnetic waves in 3D has never been experimentally achieved
in uncorrelated disordered systems. By going beyond the paradigm of disordered systems …