Symmetry-breaking induced magnetic Fano resonances in densely packed arrays of symmetric nanotrimers

Wang, Ning; Zeisberger, Matthias; Huebner, Uwe; Giannini, Vincenzo; Schmidt, Markus A.

doi:10.1038/s41598-019-39779-x

Cited by 11 publications

(7 citation statements)

References 44 publications

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“…The dispersion can be tailored, yielding ultrafast dynamics from the strong near fields of plasmonic nanoparticles. Such plasmonic lattices combined with a gain medium display strong light–matter coupling, photon and polariton lasing, and Bose–Einstein condensation. − Thus far, simple unit cells of only one or two particles have been applied, leaving the rich potential of particle complexes − untapped. Here we show that a quadrumer nanoparticle array enables lasing in a bound-state-in-continuum (BIC) mode with unique characteristics arising from the multiparticle unit cell.…”

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confidence: 99%

Quasi-BIC Mode Lasing in a Quadrumer Plasmonic Lattice

et al. 2022

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Plasmonic lattices of metal nanoparticles have emerged as an effective platform for strong light–matter coupling, lasing, and Bose–Einstein condensation. However, the full potential of complex unit cell structures has not been exploited. On the other hand, bound states in continuum (BICs) have attracted attention, as they provide topologically protected optical modes with diverging quality factors. Here, we show that quadrumer nanoparticle lattices enable lasing in a quasi-BIC mode with a highly out-of-plane character. By combining theory with polarization-resolved measurements of the emission, we show that the lasing mode has a topological charge. Our analysis reveals that the mode is primarily polarized out-of-plane as a result of the quadrumer structure. The quality factors of the out-of-plane BIC modes of the quadrumer array can be exceedingly high. Our results unveil the power of complex multiparticle unit cells in creating topologically protected high- Q modes in periodic nanostructures.

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confidence: 99%

Quasi-BIC Mode Lasing in a Quadrumer Plasmonic Lattice

et al. 2022

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“…To finish this mini-review, the last fields of application presented here are chemistry and plasmonic sensing (see Table 4). The first four examples are devoted to chemistry [89][90][91][92], and the last six are dedicated to plasmonic sensing [93][94][95][96][97][98].…”

Section: Applications To Chemistry and Plasmonic Sensingmentioning

confidence: 99%

Applications of Symmetry Breaking in Plasmonics

2020

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Plasmonics is one of the most used domains for applications to optical devices, biological and chemical sensing, and non-linear optics, for instance. Indeed, plasmonics enables confining the electromagnetic field at the nanoscale. The resonances of plasmonic systems can be set in a given domain of a spectrum by adjusting the geometry, the spatial arrangement, and the nature of the materials. Moreover, symmetry breaking can be used for the further improvement of the optical properties of the plasmonic systems. In the last three years, great advances in or insights into the use of symmetry breaking in plasmonics have occurred. In this mini-review, we present recent insights and advances on the use of symmetry breaking in plasmonics for applications to chemistry, sensing, devices, non-linear optics, and chirality.

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“…Symmetries and a band structure that resembles that of graphene were found for the hexagonal lattice of silver nanoparticles at the Γ point [385,393]. Several lattices and particle shape have been investigated in lasing, strong coupling, Fano resonances and sensing applications [394][395][396][397][398]. More recently, the use of particle arrays in the investigation of topological effects of light has been pursued [399,400].…”

Section: Plasmonic Materials With Topological Propertiesmentioning

confidence: 99%

Plasmonic resonators: fundamental properties and applications

Gonçalves

Minassian

Melikyan

2020

J. Phys. D: Appl. Phys.

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Resonators of surface plasmons are discussed in this review. Any material supporting the excitation of surface plasmons, either by light, or by electron beams can be used for designing a resonator. Despite the number of materials supporting surface plasmons being restricted to a small number, noble metals, some two-dimensional materials as graphene, transition metal oxides, and several highly doped semiconductors have been used in plasmonic applications. Isolated and coupled metal nanoparticles, arrays of particles on substrates, nanoparticle suspensions, alternated metal and dielectric thin films, dielectric cavities in surfaces of noble metals and sheets and stripes of two-dimensional materials are typical examples of systems used for excitation of plasmonic resonances. These resonances have been used in a fast increasing number of applications: transformation of light beam properties, selective optical induced heating, sensing of chemical or biological compounds, enhancement of non-linear optical excitation in nanomaterials, optical coherence applications in quantum optics. The operating spectral range, variety of sizes, shapes and geometrical configurations that can be tailored and the exceptional optical properties of surface plasmons promote their use in a wide variety of applications at the nanoscale, where other types of resonators cannot be used, or are too inefficient. We review a large variety of plasmonic resonators and their most relevant properties. We first discuss the fundamental properties of the plasmonic resonances, using simple physical models. Then we present a retrospective of applications evidencing the most relevant aspects of interaction of surface plasmons with matter and radiation. Finally we focus the most recent applications covering metamaterials, plasmonic materials with topological properties and resonators supporting plasmon-electron interaction.

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Symmetry-breaking induced magnetic Fano resonances in densely packed arrays of symmetric nanotrimers

Cited by 11 publications

References 44 publications

Quasi-BIC Mode Lasing in a Quadrumer Plasmonic Lattice

Quasi-BIC Mode Lasing in a Quadrumer Plasmonic Lattice

Applications of Symmetry Breaking in Plasmonics

Plasmonic resonators: fundamental properties and applications

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