Search results for "Òptica no lineal"

showing 2 items of 2 documents

Roadmap on optical rogue waves and extreme events

2016

Nail Akhmediev et al. ; 38 págs.; 28 figs.

:Ciències de la visió::Òptica física [Àrees temàtiques de la UPC]extreme eventsNonlinear opticsFreak-wavesProcess (engineering)Subject (philosophy)Supercontinuum generationPeregrine soliton01 natural sciences010309 opticsOptics0103 physical sciencesZero-dispersion wavelength[NLIN]Nonlinear Sciences [physics]Rogue wave010306 general physicsModulation instabilityComputingMilieux_MISCELLANEOUSPhysicsÒptica no lineal:Física [Àrees temàtiques de la UPC]Nonlinear schrodinger-equationbusiness.industryGinzburg-Landau equationnonlinear opticsRogue wavesOptical rogue wavesrogue wavesextreme events; nonlinear optics; rogue wavesExtreme eventsValue statisticsAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsVariety (cybernetics)Photonic crystal fibersWork (electrical)Noise-like pulsesPeregrine solitonbusinessScientific terminology
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Nonlinear higher-order polariton topological insulator

2020

We address the resonant response and bistability of the exciton-polariton corner states in a higher-order nonlinear topological insulator realized with kagome arrangement of microcavity pillars. Such states are resonantly excited and exist due to the balance between pump and losses, on the one hand, and between nonlinearity and dispersion in inhomogeneous potential landscape, on the other hand, for pump energy around eigen-energies of corresponding linear localized modes. Localization of the nonlinear corner states in a higher-order topological insulator can be efficiently controlled by tuning pump energy. We link the mechanism of corner state formation with symmetry of the truncated kagome…

Nonlinear opticsBistabilityFOS: Physical sciences02 engineering and technologyPattern Formation and Solitons (nlin.PS)01 natural sciences010309 opticsOptics0103 physical sciencesDispersion (optics)PolaritonPhysicsÒptica no linealCondensed matter physics:Física [Àrees temàtiques de la UPC]business.industry021001 nanoscience & nanotechnologyNonlinear Sciences - Pattern Formation and SolitonsAtomic and Molecular Physics and OpticsSymmetry (physics)Magnetic fieldNonlinear systemTopological insulatorExcited stateinsulators0210 nano-technologybusinessOptics (physics.optics)Physics - Optics
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