Zobrazeno 1 - 10
of 139
pro vyhledávání: '"Ramon Herrero"'
Publikováno v:
Phys. Rev. A 101, 033833 (2020)
We provide a feasible and compact scheme to control and stabilize the spatiotemporal dynamics of BAS lasers. The proposal is based on the ability of non-Hermitian potentials with given local symmetries to manage the flow of light. A local PT-symmetri
Externí odkaz:
http://arxiv.org/abs/1906.09146
Publikováno v:
Chaos, solitons and fractals, Oxford : Pergamon-Elsevier Science, 2022, vol. 165, part 2, art. no. 112774, p. [1-8]
We show an efficient mechanism to control optical turbulence in systems with different dispersion laws, including parabolic, sub-diffractive, hyper-diffractive or general fractional dispersion. The method is based on the modification of the energy ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9752a96289fe861e9d412526316bcde
https://hdl.handle.net/2117/382733
https://hdl.handle.net/2117/382733
Autor:
Mohammad Nayeem Akhter, Salim Benadouda Ivars, Ramon Herrero Simon, Muriel Botey Cumella, Kestutis Staliūnas
Publikováno v:
Micro-Structured and Specialty Optical Fibres VII.
Publikováno v:
Nonlinear Optics and its Applications 2022.
Publikováno v:
Chaos, Solitons & Fractals. 168:113089
We uncover new families of stable periodic solutions by the introduction of non-Hermitian potentials in the universal complex Ginzburg–Landau equation. We perform a comprehensive analysis on the dynamics and stability of the system by determining a
We propose a method for a control of turbulence by modifying the excitation cascade leading to turbulence. The method is based on the asymmetric coupling between the spatiotemporal excitation modes by non-Hermitian potentials. The non-Hermitian poten
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5401bc51489318c3d92d8455f0bfae7a
https://hdl.handle.net/2117/377530
https://hdl.handle.net/2117/377530
In this paper, we propose a general inverse-design strategy based on genetic algorithm optimization to achieve ‘on demand’ manipulation of light in one-dimensional (1D) and two-dimensional (2D) non-Hermitian systems. The optimization process fait
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::040354dc88bf0c30f88b5b5a37bb7431
https://hdl.handle.net/2117/384499
https://hdl.handle.net/2117/384499
Autor:
Gámez, María Romero, Grant, Gastón, Pérez, Guillermo Azumendi, Cantarero, José Ramón Herrero, Borenstein, Marisa
Publikováno v:
In Diagnóstico Prenatal July-September 2011 22(3):68-73
Publikováno v:
Active Photonic Platforms XIII.
We introduce a new method to affect the energy cascade through wavevectors accountable for the turbulence. By the introduction of a spatiotemporal non-Hermitian potential we have been able to tilt or promote the energy cascade to reduce or increase t
Publikováno v:
Optics express, Washington : Optical Society of America, 2021, vol. 29, iss. 11, art. no. 17001, p. [1-10]
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
We propose a genetic algorithm-assisted inverse design approach to achieve ‘ondemand’ light transport in periodic and non-periodic planar structures containing dielectric and gain-loss layers. The optimization algorithm efficiently produces non-H