36 citations · 189 across the 12 of their papers we have counts for
12 papers
Hybrid patterns and solitonic frequency combs in non-Hermitian Kerr Cavities
Salim B. Ivars, Carles Milián, Muriel Botey +2
We unveil a new scenario for the formation of dissipative localised structures in nonlinear systems. Commonly, the formation of such structures arises from the connection of a homo…
Non-Hermitian Mode Cleaning in Periodically Modulated Multimode Fibers
M. N. Akhter, S. B. Ivars, M. Botey +2
We show that the simultaneous modulation of the propagation constant and of the gain/loss coefficient along the multimode fibers results in unidirectional coupling among the modes,…
Non-Hermitian arrangement for stable semiconductor laser arrays
J. Medina Pardell, R. Herrero, M. Botey +1
We propose and explore a physical mechanism for the stabilization of the complex spatiotemporal dynamics in arrays (bars) of broad area laser diodes taking advantage of the symmetr…
Genetic optimization Invents non-Hermitian potentials for Asymmetric Reflectivity
W. W. Ahmed, R. Herrero, M. Botey +2
We propose a general design strategy based on genetic optimization to realize asymmetric reflectivity in periodic and non-periodic planar structures containing dielectric and gain-…
Restricted Hilbert transform for non-Hermitian management of fields
W. W. Ahmed, R. Herrero, M. Botey +2
Non-Hermitian systems exploiting the synergy between gain and loss have recently become the focus of interest to discover novel physical phenomena. The spatial symmetry breaking in…
Regularization of Vertical-Cavity Surface-Emitting Lasers emission by periodic non-Hermitian potentials
W. W. Ahmed, R. Herrero, M. Botey +2
We propose a novel physical mechanism based on periodic non-Hermitian potentials to efficiently control the complex spatial dynamics of broad-area lasers, particularly in Vertical-…
Stabilization of Broad Area Semiconductor Laser sources by simultaneous index and pump modulations
W. W. Ahmed, S. Kumar, J. Medina +3
We show that the emission of broad area semiconductor amplifiers and lasers can be efficiently stabilized by introducing, two-dimensional periodic modulations simultaneously on bot…
All-dielectric self-cloaked structures
Zeki Hayran, Ramon Herrero, Muriel Botey +2
While practical realizations of optical invisibility have been achieved so far by various ingenious methods, they generally rely on complex materials which prevent the wide impleme…
Directionality Fields generated by a Local Hilbert Transform
W. W. Ahmed, R. Herrero, M. Botey +3
We propose a new approach based on a local Hilbert transform to design non-Hermitian potentials generating arbitrary vector fields of directionality, p(r), with desired shapes and…
Invisibility on demand based on a generalized Hilbert transform
Zeki Hayran, Ramon Herrero, Muriel Botey +2
Designing invisible objects without the usage of extreme materials is a long-sought goal for photonic applications. Invisibility techniques demonstrated so far typically require hi…
Taming of Modulation Instability by Spatio-Temporal Modulation of the Potential
S. Kumar, R. Herrero, M. Botey +1
Spontaneous pattern formation in a variety of spatially extended nonlinear system always occurs through a modulation instability: homogeneous state of the system becomes unstable w…
High-Directional Wave Propagation in Periodic Gain/Loss Modulated Materials
N. Kumar, M. Botey, R. Herrero +2
Amplification/attenuation of light waves in artificial materials with a gain/loss modulation on the wavelength scale can be sensitive to the propagation direction. We give a numeri…