Plasmonic kinks and walking solitons in nonlinear lattices of metal nanoparticles

Noskov, Roman E.; Kivshar, Yuri S.

doi:10.1098/rsta.2014.0010

Cited by 7 publications

(4 citation statements)

References 35 publications

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“…For example, nonlinear magnetoactive switchers sensitive to the light polarization can significantly increase the number of simultaneously processing channels for on-chip nanoantennas [58]. In analogy to metallic nanoparticles, arrays of MPNPs are expected to support a variety of nonlinear subwavelength dynamical modes in the form of kinks, solitons, oscillons and spatial patterns [40,[59][60][61][62], and the MO effect will serve the powerful tool for steering these modes and searching for novel nonlinear dynamical phenomena.…”

Section: Discussionmentioning

confidence: 99%

Optical tristability and ultrafast Fano switching in nonlinear magnetoplasmonic nanoparticles

Sun

et al. 2018

Phys. Rev. B

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We consider light scattering by a coated magneto-plasmonic nanoparticle (MPNP) with a Kerr-type nonlinear plasmonic shell and a magneto-optic core. Such structure features two plasmon dipole modes, associated with electronic oscillations on the inner and outer surfaces of the shell. Driven in a nonlinear regime, each mode exhibits a bistable response. Bistability of an inner plasmon leads to switching between this state and a Fano resonance (Fano switching). Once the external light intensity exceeds the critical value, the bistability zones of both eigen modes overlap yielding optical tristability characterized by three stable steady states for a given wavelength and light intensity. We develop a dynamic theory of transitions between nonlinear steady states and estimate the characteristic switching time as short as 0.5 ps. We also show that the magneto-optical (MO) effect allows red-and blue-spectral shift of the Fano profile for right-and left-circular polarizations of the external light, rendering Fano switching sensitive to the light polarization. Specifically, one can reach Fano switching for the right circular polarization while cancelling it for the left circular polarization. Our results point to a novel class of ultrafast Fano switchers tunable by magnetic field for applications in nanophotonics.

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Section: Discussionmentioning

confidence: 99%

Optical tristability and ultrafast Fano switching in nonlinear magnetoplasmonic nanoparticles

Sun

et al. 2018

Phys. Rev. B

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“…Using a nematic liquid crystal cells with a photosensitive wall and negative dielectric anisotropy, Barboza et al [213] demonstrate experimentally and numerically the possibility of generation of stable vortices with swirling arms. The demonstration and the characterization of families of moving solitons in lattices composed of metallic nanoparticles with nonlinear Kerr-like response and an external driving field is provided by Noskov et al [214]. A system formed by an array of plasmonic waveguides, with gain applied to selected hot spot cores is discussed by Ding et al [215].…”

Section: Contributions To the Theme Issuementioning

confidence: 99%

Localized structures in dissipative media: from optics to plant ecology

Tlidi

Staliūnas

Panajotov

et al. 2014

Phil. Trans. R. Soc. A.

106

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Localized structures (LSs) in dissipative media appear in various fields of natural science such as biology, chemistry, plant ecology, optics and laser physics. The proposal for this Theme Issue was to gather specialists from various fields of nonlinear science towards a cross-fertilization among active areas of research. This is a cross-disciplinary area of research dominated by nonlinear optics due to potential applications for all-optical control of light, optical storage and information processing. This Theme Issue contains contributions from 18 active groups involved in the LS field and have all made significant contributions in recent years.

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“…Another topic, closely related to the scattering management, is the emerging field of metasurfaces [14][15][16][17][18][19][20][21][22][23] which allow tailoring electromagnetic energy flow with subwavelength thin patterned layers. In a vast majority of the reported designs, resonant elements are organized within two-dimensional arrays, and collective interaction phenomena are obtained.…”

Section: Introductionmentioning

confidence: 99%

Wire resonator as a broadband Huygens superscatterer

et al. 2020

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Interference phenomena render tailoring propagation of electromagnetic waves by controlling phases of several scattering channels. Huygens element, being a representative example of this approach, allows enhancement of the scattering from an object in a forward direction, while the reflection is suppressed.However, a typical resonant realization of Huygens element employs constructive interference between electric and magnetic dipolar resonances that makes it relatively narrowband. Here we develop the concept of a broadband resonant Huygens element, based on a circular array of vertically aligned metal wires. Accurate management of multipole interference in an electrically small structure results in directional scattering over a large bandwidth, acceding 10% of the carrier frequency. Being constructed from non-magnetic materials, this structure demonstrates a strong magnetic response appearing in dominating magnetic multipoles over electric counterparts. Moreover, we predict and observe very highorder magnetic hexadecapole (M16-pole) and magnetic triakontadipole (M32-pole) with quality factors, approaching 6,000. The experimental demonstration is performed at the low GHz spectral range. Our findings shed light on a simple approach for engineering compact and open electromagnetic devices (antennas, directional reflectors, refractors, etc.) able to tailor wave propagation in a broadband domain, concentrate strong magnetic field, and generate high-order magnetic multipoles.

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Plasmonic kinks and walking solitons in nonlinear lattices of metal nanoparticles

Cited by 7 publications

References 35 publications

Optical tristability and ultrafast Fano switching in nonlinear magnetoplasmonic nanoparticles

Optical tristability and ultrafast Fano switching in nonlinear magnetoplasmonic nanoparticles

Localized structures in dissipative media: from optics to plant ecology

Wire resonator as a broadband Huygens superscatterer

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