Lattice modes and plasmonic linewidth engineering in gold and aluminum nanoparticle arrays

Khlopin, Dmitry; Laux, Frédéric; Wardley, William P.; Martin, Jérôme; Wurtz, Gregory A.; Plain, Jérôme; Bonod, Nicolas; Zayats, Anatoly V.; Dickson, Wayne; Gérard, Davy

doi:10.1364/josab.34.000691

Cited by 174 publications

(160 citation statements)

References 45 publications

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“…Figure b shows the first and second‐order Bragg diffraction from a 2D nanohole array written in PDMS with a varying lattice constant ( a = 420, 440, 500 nm). In contrast to the plasmonic mode (Figure a), the line width of these photonic modes is comparably narrow …”

Section: Spectroscopic Properties Of Tunable Plasmonic Latticesmentioning

confidence: 89%

“…The ordered arrays possess the combined properties of particle plasmons and diffractive modes (see Figure c), also known as plasmonic hybridization . At the SLR conditions the incoming light is trapped inside the lattice plane and leads to a narrow full width at half maximum (FWHM or line width) and strongly enhanced local electric fields at the nanoparticle surface . This occurs due to the constructive interference and coherent coupling at the SLR position which leads to the standing wave formation and hence allows for localized field enhancement.…”

Section: Spectroscopic Properties Of Tunable Plasmonic Latticesmentioning

confidence: 99%

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Mechanotunable Plasmonic Properties of Colloidal Assemblies

Brasse

Gupta

Schollbach

et al. 2019

Adv Materials Inter

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Noble metal nanoparticles can absorb incident light very efficiently due to their ability to support localized surface plasmon resonances (LSPRs), collective oscillations of the free electron cloud. LSPRs lead to strong, nanoscale confinement of electromagnetic energy which facilitates applications in many fields including sensing, photonics, or catalysis. In these applications, damping of the LSPR caused by inter‐ and intraband transitions is a limiting factor due to the associated energy losses and line broadening. The losses and broad linewidth can be mitigated by arranging the particles into periodic lattices. Recent advances in particle synthesis, (self‐)assembly, and fabrication techniques allow for the realization of collective coupling effects building on various particle sizes, geometries, and compositions. Beyond assemblies on static substrates, by assembling or printing on mechanically deformable surfaces a modulation of the lattice periodicity is possible. This enables significant alteration and tuning of the optical properties. This progress report focuses on this novel approach for tunable spectroscopic properties with a particular focus on low‐cost and large‐area fabrication techniques for functional plasmonic lattices. The report concludes with a discussion of the perspectives for expanding the mechanotunable colloidal concept to responsive structures and flexible devices.

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Section: Spectroscopic Properties Of Tunable Plasmonic Latticesmentioning

confidence: 89%

Section: Spectroscopic Properties Of Tunable Plasmonic Latticesmentioning

confidence: 99%

Mechanotunable Plasmonic Properties of Colloidal Assemblies

Brasse

Gupta

Schollbach

et al. 2019

Adv Materials Inter

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show abstract

“…As the SERS enhancement [133] equals ðjEj=jE 0 jÞ 4 , this means that a two-dimensional nanoantenna lattice with a 40-nm spacing would enhance the SERS signal over 44% of the surface area of the specimen [π · ð15 nmÞ 2 =ð40 nmÞ 2 ¼ 0.44], with a factor of between 10 3 and 10 6 . In addition (if the spacing is above but on the same order of magnitude as the wavelength of the incident light), diffractive coupling between the ion-beam-shaped nanoparticles can (under the right incident conditions) lead to the creation of lattice-surface modes [134], which, in their spectral response of the IBSNA, manifest themselves as Fano resonances [134][135][136] and which can be tuned by the nanoantenna shape, orientation, and spacing [134,[137][138][139]. In contrast to the resonances of the individual nanoantennas, which usually feature quality factors smaller LOCALIZED PLASMONIC RESONANCES OF PROLATE … PHYS.…”

Section: B Ibsnas For Surface-enhanced Raman Spectroscopy (Sers)mentioning

confidence: 99%

“…REV. APPLIED 9, 064038 (2018) 064038-15 than 10, the quality factors of Fano resonances can reach several hundred [134,138,139], which can be exploited for very selective molecule detection in SERS applications.…”

Section: B Ibsnas For Surface-enhanced Raman Spectroscopy (Sers)mentioning

confidence: 99%

Localized Plasmonic Resonances of Prolate Nanoparticles in a Symmetric Environment: Experimental Verification of the Accuracy of Numerical and Analytical Models

et al. 2018

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We study the evolution of the surface-plasmon resonances of individual ion-beam-shaped prolate gold nanoparticles embedded in a dielectric SiO 2 environment by electron-energy-loss spectroscopy mapping in a scanning transmission electron microscope. The controlled symmetric dielectric environment obtained through the ion-beam-shaping method allows a direct quantitative comparison with numerical results obtained through simulations (auxiliary differential-equation finite-difference time-domain and boundary-element method) and with theoretical results obtained through analytical models (quasistatic model for prolate nanoellipsoids and waveguide model for infinite one-dimensional plasmonic waveguides), with which our experimental results are in very good agreement. We confirm the accuracy of state-of-the-art numerical tools and analytical theories that establish ion-beam shaping as a very promising method to design metal-dielectric nanocomposites with well-predicted optical properties, and with many possible applications in surfaceenhanced Raman spectroscopy and second-harmonic generation, as well as in conventional applications of metamaterials like negative refraction, superimaging, and invisibility cloaking.

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“…One of the loss mitigating strategies in noble-metal plasmonics involves near-or far-field coupling of nanostructures. In periodic two-dimensional nanoparticle arrays, for instance, radiative coupling between diffracted waves in the array plane and localized surface plasmon resonances (LSPRs) produces collective surface lattice resonances (SLRs) [16][17][18][19]. The full-width at half maximum (FWHM) of SLRs in Au or Ag nanoparticle arrays can be <10 nm [19], which is a significant improvement from 80 -100 nm for LSPRs in isolated nanostructures of these noble metals.…”

Section: Introductionmentioning

confidence: 99%

Surface-plasmon-polariton-driven narrow-linewidth magneto-optics in Ni nanodisk arrays

2019

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Magnetoplasmonics exploits interactions between light and magnetic matter at the nanoscale for light manipulation and resonant magneto-optics. One of the great challenges of this field is overcoming optical losses in magnetic metals. Here we exploit surface plasmon polaritons (SPPs) excited at the interface of a SiO2/Au bilayer to induce strong magneto-optical responses on the Ni nanodisks of a periodic array. Using a reference system made of Au nanodisks, we show that optical losses in Ni do hardly broaden the linewidth of SPP-driven magneto-optical signals.Loss mitigation is attained because the free electrons in the Ni nanodisks are driven into forced oscillations away from their plasmon resonance. By varying the SiO2 layer thickness and lattice constant of the Ni nanodisk array, we demonstrate tailoring of intense magneto-optical Kerr effects with a spectral linewidth down to ~25 nm. Our results provide important hints on how to circumvent losses and enhance magneto-optical signals via the design of off-resonance magnetoplasmonic driving mechanisms.

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Lattice modes and plasmonic linewidth engineering in gold and aluminum nanoparticle arrays

Abstract: International audienc

Cited by 174 publications

References 45 publications

Mechanotunable Plasmonic Properties of Colloidal Assemblies

Mechanotunable Plasmonic Properties of Colloidal Assemblies

Localized Plasmonic Resonances of Prolate Nanoparticles in a Symmetric Environment: Experimental Verification of the Accuracy of Numerical and Analytical Models

Surface-plasmon-polariton-driven narrow-linewidth magneto-optics in Ni nanodisk arrays

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