Tailored Hypersound Generation in Single Plasmonic Nanoantennas

Picca, Fabricio Della; Berté, Rodrigo; Rahmani, Mohsen; Albella, Pablo; Bujjamer, Juan M.; Poblet, Martín; Cortés, Emiliano; Maier, Stefan A.; Bragas, Andrea V.

doi:10.1021/acs.nanolett.5b04991

Cited by 40 publications

(52 citation statements)

References 36 publications

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“…[22,40]. In recent years, the relation between the shape of the particle and its acoustical mode spectrum has been investigated in detail [36,[41][42][43]. Single particle spectroscopy allowed to investigate the influence of rare cases in particle geometry [44,45].…”

Section: Acoustical Oscillationsmentioning

confidence: 99%

Nonlinear spectroscopy of plasmonic nanoparticles

Obermeier

Schumacher

Lippitz

2018

Advances in Physics: X

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The plasmon resonance of a metal nanoparticle increases the optical field amplitude in and around the particle with respect to the incoming wave. In consequence, optical effects that are nonlinear in their field amplitude profit from this increased field. In general, a plasmonic structure can react nonlinearly by itself and it can also enhance the effect of the nonlinearity in its environment, which we consider as plasmonic nanoantenna. In this paper, we review third-order nonlinear effects such as third-harmonic generation, pump-probe spectroscopy, coherent anti-Stokes Raman scattering and four-wave mixing of and near plasmonic nanostructures. All these processes are described by very similar equations for the nonlinear polarization, but the underling physics differs.

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Section: Acoustical Oscillationsmentioning

confidence: 99%

Nonlinear spectroscopy of plasmonic nanoparticles

Obermeier

Schumacher

Lippitz

2018

Advances in Physics: X

View full text Add to dashboard Cite

show abstract

“…At smaller scale, in mechanical engineering, applications based on wave redirection and protection are currently being explored (Colombi, 2016;Colombi et al, 2017) to reduce vibrations in high precision manufacturing and in laboratories for high precision measurements (e.g., interferometry) or in the field of ultrasonic sensing to amplify signal to noise ratio. In the field of acoustic imaging, the tailored control of hypersound (elastic waves at GHz frequencies), used for cell or other nano-compound imaging or energy conversion and harvesting (Davis and Hussein, 2014;Della Picca et al, 2016), is emerging as one of the most promising applications of energy trapping and signal enhancement through metamaterials. Furthermore, at this small scale, novel nanofabrication techniques deliver the tailoring possibilities required for graded devices (e.g., Alonso-Redondo et al, 2015;Rey et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Elastic Wave Control Beyond Band-Gaps: Shaping the Flow of Waves in Plates and Half-Spaces with Subwavelength Resonant Rods

et al. 2017

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In metamaterial science, local resonance and hybridization are key phenomena strongly influencing the dispersion properties; the metasurface discussed in this article created by a cluster of resonators, subwavelength rods, atop an elastic surface being an exemplar with these features. On this metasurface, band-gaps, slow or fast waves, negative refraction, and dynamic anisotropy can all be observed by exploring frequencies and wavenumbers from the Floquet-Bloch problem and by using the Brillouin zone. These extreme characteristics, when appropriately engineered, can be used to design and control the propagation of elastic waves along the metasurface. For the exemplar we consider, two parameters are easily tuned: rod height and cluster periodicity. The height is directly related to the band-gap frequency and, hence, to the slow and fast waves, while the periodicity is related to the appearance of dynamic anisotropy. Playing with these two parameters generates a gallery of metasurface designs to control the propagation of both flexural waves in plates and surface Rayleigh waves for half-spaces. Scalability with respect to the frequency and wavelength of the governing physical laws allows the application of these concepts in very different fields and over a wide range of lengthscales.

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“…Beside their fundamental interest for the understanding of electronic and mechanical properties of metal nanosytems, these studies may have possible applications to mass sensing [20,21]. If the coupling between surface plasmon modes and the mechanical oscillations sustained by metal nanosytems have been studied for a wide range of particle's shapes (spheres [22], cubes [23], rods [24][25][26][27], columns [28], antenna [29], crosses [30]), investigations of system composed of interacting metal particle and metal film are still lacking, to the best of our knowledge.…”

Section: Introductionmentioning

confidence: 99%

Elastoplasmonic interaction in metal-insulator-metal localized surface plasmon systems

et al. 2016

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We investigate theoretically and numerically the coupling between elastic and localized surface plasmon modes in a system of gold nanocylinders separated from a thin gold film by a dielectric spacer of few nanometers thickness. That system supports plasmon modes confined in between the bottom of the nanocylinder and the top of the gold film, which arise from the formation of interference patterns by short-wavelength metal-insulator-metal propagating plasmon. First we present the plasmonic properties of the system though computer-simulated extinction spectra and field maps associated to the different optical modes. Next a simple analytical model is introduced, which allows to correctly reproduce the shape and wavelengths of the plasmon modes. This model is used to investigate the efficiency of the coupling between an elastic deformation and the plasmonic modes. In the last part of the paper, we present the full numerical simulations of the phononic properties of the system, and then compute the acousto-plasmonic coupling between the different plasmon modes and five acoustic modes of very different shape. The efficiency of the coupling is assessed first by evaluating the modulation of the resonance wavelength, which allows comparison with the analytical model, and finally in term of time-modulation of the transmission spectra on the full visible range, computed for realistic values of the deformation of the nanoparticle.

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Tailored Hypersound Generation in Single Plasmonic Nanoantennas

Cited by 40 publications

References 36 publications

Nonlinear spectroscopy of plasmonic nanoparticles

Nonlinear spectroscopy of plasmonic nanoparticles

Elastic Wave Control Beyond Band-Gaps: Shaping the Flow of Waves in Plates and Half-Spaces with Subwavelength Resonant Rods

Elastoplasmonic interaction in metal-insulator-metal localized surface plasmon systems

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