0000000000208795

AUTHOR

Milivoj R. Belic

showing 6 related works from this author

Engineered surface waves in hyperbolic metamaterials

2013

We analyzed surface-wave propagation that takes place at the boundary between a semi-infinite dielectric and a multilayered metamaterial, the latter with indefinite permittivity and cut normally to the layers. Known hyperbolization of the dispersion curve is discussed within distinct spectral regimes, including the role of the surrounding material. Hybridization of surface waves enable tighter confinement near the interface in comparison with pure-TM surface-plasmon polaritons. We demonstrate that the effective-medium approach deviates severely in practical implementations. By using the finite-element method, we predict the existence of long-range oblique surface waves. This research was fu…

surface-plasmon polaritonsPermittivityWave propagationEffective medium theoryPhysics::Optics02 engineering and technology01 natural sciences010309 opticsOpticshyperbolizationNegative refraction0103 physical sciencesPolaritonDispersion (water waves)surface-wave propagationNanomaterialsÓpticaPhysicsbusiness.industryMetamaterial021001 nanoscience & nanotechnologySurface plasmon polaritonAtomic and Molecular Physics and OpticsSurface wave0210 nano-technologybusinessOptics Express
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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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Tunable invisibility cloaking by using isolated graphene-coated nanowires and dimers

2017

AbstractWe investigate, both theoretically and numerically, a graphene-coated nano-cylinder illuminated by a plane electromagnetic wave in the far-infrared range of frequencies. We have derived an analytical formula that enables fast evaluation of the spectral window with a substantial reduction in scattering efficiency for a sufficiently thin cylinder. This polarization-dependent effect leads to tunable resonant invisibility that can be achieved via modification of graphene chemical potential monitored by the gate voltage. A multi-frequency cloaking mechanism based on dimer coated nanowires is also discussed in detail.

Materials scienceNanowirelcsh:MedicinePhysics::OpticsNanoparticleCloakingcoatings02 engineering and technologyTheories of cloaking01 natural sciencesElectromagnetic radiationArticlelaw.invention010309 opticslaw0103 physical sciencesCylinderlcsh:ScienceNanotubesMultidisciplinarybusiness.industryScatteringGraphenelcsh:Rgraphene021001 nanoscience & nanotechnologyOptical properties and devicesNanoparticlesOptoelectronicslcsh:Q0210 nano-technologybusinessScientific Reports
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Dyakonov-like surface waves in semi-infinite metal-dielectric lattices

2012

We demonstrated the existence of Dyakonov-like surface waves propagating at the boundary between a metal-insulator lattice and an isotropic dielectric. A range of propagation angles substantially greater than that for conventional birefringent materials is obtained, and with reasonably small losses.

BirefringenceMaterials scienceCondensed matter physicsSemi-infinitebusiness.industryIsotropySurface plasmonPhysics::OpticsDielectric01 natural sciences010305 fluids & plasmasMagnetic fieldOpticsSurface wave0103 physical sciences010306 general physicsbusinessRefractive indexFrontiers in Optics 2012/Laser Science XXVIII
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Substantial enlargement of angular existence range for Dyakonov-like surface waves at semi-infinite metal-dielectric superlattice

2012

We investigated surface waves guided by the boundary of a semi-infinite layered metal-dielectric nanostructure cut normally to the layers and a semi-infinite dielectric material. Using the Floquet-Bloch formalism, we found that Dyakonov-like surface waves with hybrid polarization can propagate in dramatically enhanced angular range compared to conventional birefringent materials. Our numerical simulations for an Ag-GaAs stack in contact with glass show a low to moderate influence of losses. This research was funded by the Qatar National Research Fund under the project NPRP 09-462-1-074, by the Spanish Ministry of Economy and Competitiveness under the project TEC2009-11635, and by the Serbia…

Materials scienceSuperlatticesWave propagationSuperlatticeNanophotonicsPhysics::OpticsSurface plasmons02 engineering and technologyDielectric01 natural sciences010309 opticsOptics0103 physical sciencesÓpticaCondensed matter physicsbusiness.industrySurface plasmonMetamaterial021001 nanoscience & nanotechnologyCondensed Matter PhysicsPolarization (waves)Electronic Optical and Magnetic MaterialsSurfacesSurface waveMetamaterialsNanophotonics0210 nano-technologybusinessJournal of Nanophotonics
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Hybrid surface waves in semi-infinite metal-dielectric lattices

2012

We investigate surface waves at the boundary between a semi-infinite layered metal-dielectric nanostructure cut normally to the layers and a semi-infinite dielectric. Spatial dispersion properties of such a nanostructure can be dramatically affected by coupling of surface plasmons polaritons at different metal-dielectric interfaces. As a consequence, the effective medium approach is not applicable in general. It is demonstrated that Dyakonov-like surface waves with hybrid polarization can propagate in an angular range substantially enlarged compared to conventional birefringent materials. Our numerical simulations for an Ag-GaAs stack in contact with glass show a low to moderate influence o…

Condensed Matter::Materials SciencePhysics::OpticsFOS: Physical sciencesPhysics - OpticsOptics (physics.optics)
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