Linear and ultrafast nonlinear plasmonics of single nano-objects

Crut, Aurélien; Maioli, Paolo; Vallée, Fabrice; Fatti, Natalia Del

doi:10.1088/1361-648x/aa59cc

Cited by 29 publications

(47 citation statements)

References 124 publications

(344 reference statements)

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“…The optical dephasing of the LSP is also very sensitive to the different capped molecules on the NP surface [56]. More recently this effect was investigated for individual NPs [57] and a good understanding of the surface broadening effects and their morphology dependence was obtained.…”

Section: Optical Nonlinearity Of Spherical Nanoparticles Suspended Inmentioning

confidence: 99%

High-order optical nonlinearities in plasmonic nanocomposites—a review

Reyna

Araújo

2017

Adv. Opt. Photon.

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Section: Optical Nonlinearity Of Spherical Nanoparticles Suspended Inmentioning

confidence: 99%

High-order optical nonlinearities in plasmonic nanocomposites—a review

Reyna

Araújo

2017

Adv. Opt. Photon.

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“…Ultrafast timeresolved optical spectroscopy is the approach commonly used for investigating the electron energy dynamics of a metal system after an impulsive outofequi librium excitation, giving access to the measurement of its electronlattice energy transfer rate. This technique consists in measuring the transient changes of the system optical extinc tion induced by the instantaneous absorption of a femtosecond pump pulse [23][24][25]. After excitation, hot electrons redis tribute their energy by electron-electron interactions (typical timescale of a few hundred femtoseconds in noble metals), leading to internal thermalization of the quasifree conduc tion electron gas [24,26].…”

Section: Introductionmentioning

confidence: 99%

Ultrafast electron-lattice thermalization in copper and other noble metal nanoparticles

Mongin

Maioli

Burgin

et al. 2019

J. Phys.: Condens. Matter

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Using timeresolved ultrafast pumpprobe spectroscopy we investigated the electronlattice energy transfer in small copper nanospheres with diameters ranging from 3.2 to 23 nm, either embedded in a glass or dispersed in a solvent. Electronlattice scattering rate is shown to increase with size reduction, in agreement with our previous results obtained on gold and silver nanoparticles in the low excitation regime. We attribute this effect to the reduction of the screening efficiency of electron-phonon interactions close to the nanoparticle surface. To understand the discrepancy between the results on the electronlattice scattering in different metals reported in the literature (reduction, no dependence or increase with nanoparticle size), we discuss the experimental conditions required for the accurate determination of electronlattice energy transfer time from timeresolved investigations in the weak and strong excitation regimes and present powerdependent experiments on gold nanospheres in solution. Our findings are derived from a theoretical analysis based on the twotemperature model predictions and on a complete modeling of the nanoparticle transient extinction crosssection through the resolution of Boltzmann equation in the presence of hot electrons.

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“…For a review see Refs. [12,18,22,29,30]. In a gold nanoparticle, a near-infrared pump pulse excites a collective electron oscillation that dephases on a timescale of 10 fs [31].…”

Section: Overview Of Time Scalesmentioning

confidence: 99%

“…Refs. [12,34]. The modified occupation f (E) of the states in the sp band changes the absorption for transitions within the sp band and for those starting from the d band.…”

Section: Overview Of Time Scalesmentioning

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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Linear and ultrafast nonlinear plasmonics of single nano-objects

Cited by 29 publications

References 124 publications

High-order optical nonlinearities in plasmonic nanocomposites—a review

High-order optical nonlinearities in plasmonic nanocomposites—a review

Ultrafast electron-lattice thermalization in copper and other noble metal nanoparticles

Nonlinear spectroscopy of plasmonic nanoparticles

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