Speeding up Nanoscience and Nanotechnology with Ultrafast Plasmonics

Maccaferri, Nicolò; Meuret, Sophie; Kornienko, Nikolay; Jariwala, Deep

doi:10.1021/acs.nanolett.0c02452

Cited by 12 publications

(12 citation statements)

References 24 publications

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“…The study of the temporal dynamics of Fano resonances arising in different photonic systems has been gaining increasing interest recently [ 44,57,74 ] since the knowledge of both the spatial and temporal structure of the scattered field can enable a more comprehensive understanding of its interaction with matter [ 75 ] under ultrashort pulses. Among the novel, promising effects, Fano resonances have been shown to display ultrafast energy spikes when illuminated by a pulse with sharp variation.…”

Section: Resultsmentioning

confidence: 99%

“…Among the novel, promising effects, Fano resonances have been shown to display ultrafast energy spikes when illuminated by a pulse with sharp variation. [ 75 ] Such energy spikes were tentatively associated with the rapid breakdown of the balance between the high and low Q modes whose mutual destructive interference leads to the Fano profile under CW illumination.…”

Section: Resultsmentioning

confidence: 99%

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Theory, Observation, and Ultrafast Response of the Hybrid Anapole Regime in Light Scattering

Valero

Gurvitz

Benimetskiy

et al. 2021

Laser & Photonics Reviews

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Modern nanophotonics has witnessed the rise of “electric anapoles” (EDAs), destructive interferences of electric and toroidal electric dipoles, actively exploited to resonantly decrease radiation from nanoresonators. However, the inherent duality in Maxwell equations suggests the intriguing possibility of “magnetic anapoles,” involving a nonradiating composition of a magnetic dipole and a magnetic toroidal dipole. Here, a hybrid anapole (HA) of mixed electric and magnetic character is predicted and observed experimentally via dark field spectroscopy, with all the dominant multipoles being suppressed by the toroidal terms in a nanocylinder. Breaking the spherical symmetry allows to overlap up to four anapoles stemming from different multipoles with just two tuning parameters. This effect is due to a symmetry‐allowed connection between the resonator multipolar response and its eigenstates. The authors delve into the physics of such current configurations in the stationary and transient regimes and explore new ultrafast phenomena arising at sub‐picosecond timescales, associated with the HA dynamics. The theoretical results allow the design of non‐Huygens metasurfaces featuring a dual functionality: perfect transparency in the stationary regime and controllable ultrashort pulse beatings in the transient. Besides offering significant advantages with respect to EDAs, HAs can play an essential role in developing the emerging field of ultrafast resonant phenomena.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Theory, Observation, and Ultrafast Response of the Hybrid Anapole Regime in Light Scattering

Valero

Gurvitz

Benimetskiy

et al. 2021

Laser & Photonics Reviews

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“…Thus, multiscale approaches have been applied to describe electronic dynamics of molecules in proximity of plasmonic NPs. 7 − 12 In this framework, real-time simulations are especially interesting because they reproduce directly experimental conditions comprising sequences of light pulses and/or pulses with specific shapes, like in ultrafast spectroscopies, 2 , 13 and nonlinear optical properties, 14 and, finally, allow the direct inclusion of relaxation and decoherence effects. 15 …”

Section: Introductionmentioning

confidence: 99%

Electronic Dynamics of a Molecular System Coupled to a Plasmonic Nanoparticle Combining the Polarizable Continuum Model and Many-Body Perturbation Theory

Marsili

Corni

2022

J. Phys. Chem. C

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The efficiency of plasmonic metallic nanoparticles in harvesting and concentrating light energy in their proximity triggers a wealth of important and intriguing phenomena. For example, spectroscopies are able to reach single-molecule and intramolecule sensitivities, and important chemical reactions can be effectively photocatalyzed. For the real-time description of the coupled dynamics of a molecule’s electronic system and of a plasmonic nanoparticle, a methodology has been recently proposed ( J. Phys. Chem. C 2016 120 28774 28781 ) which combines the classical description of the nanoparticle as a polarizable continuum medium with a quantum-mechanical description of the molecule treated at the time-dependent configuration interaction (TDCI) level. In this work, we extend this methodology by describing the molecule using many-body perturbation theory: the molecule’s excitation energies, transition dipoles, and potentials computed at the GW/Bethe–Salpeter equation (BSE) level. This allows us to overcome current limitations of TDCI in terms of achievable accuracy without compromising on the accessible molecular sizes. We illustrate the developed scheme by characterizing the coupled nanoparticle/molecule dynamics of two prototype molecules, LiCN and p -nitroaniline.

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“…In the worst case scenario, propagation lengths at metal-dielectric surfaces can be smaller than the wavelength itself. Despite this significant disadvantage, plasmonics continues to attract a lot of attention [45], and is frequently pointed to as the transformative platform for addressing inherent limitations of all-dielectric nonlinear devices [46]. The hope is that, although longrange propagation is out of the question, perhaps local field amplitudes can be large enough to make it all worthwhile.…”

Section: Introductionmentioning

confidence: 99%

Nanoscale nonlinear plasmonics in photonic waveguides and circuits

Tuniz

2021

Riv. Nuovo Cim.

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Optical waveguides are the key building block of optical fiber and photonic integrated circuit technology, which can benefit from active photonic manipulation to complement their passive guiding mechanisms. A number of emerging applications will require faster nanoscale waveguide circuits that produce stronger light-matter interactions and consume less power. Functionalities that rely on nonlinear optics are particularly attractive in terms of their femtosecond response times and terahertz bandwidth, but typically demand high powers or large footprints when using dielectrics alone. Plasmonic nanostructures have long promised to harness metals for truly nanoscale, energy-efficient nonlinear optics. Early excitement has settled into cautious optimism, and recent years have been marked by remarkable progress in enhancing a number of photonic circuit functions with nonlinear plasmonic waveguides across several application areas. This work presents an introductory review of nonlinear plasmonics in the context of guided-wave structures, followed by a comprehensive overview of related experiments and applications covering nonlinear light generation, all-optical signal processing, terahertz generation/detection, electro optics, quantum optics, and molecular sensing.

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Speeding up Nanoscience and Nanotechnology with Ultrafast Plasmonics

Cited by 12 publications

References 24 publications

Theory, Observation, and Ultrafast Response of the Hybrid Anapole Regime in Light Scattering

Theory, Observation, and Ultrafast Response of the Hybrid Anapole Regime in Light Scattering

Electronic Dynamics of a Molecular System Coupled to a Plasmonic Nanoparticle Combining the Polarizable Continuum Model and Many-Body Perturbation Theory

Nanoscale nonlinear plasmonics in photonic waveguides and circuits

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