Rational description of the ion-beam shaping mechanism

Rizza, Giancarlo; Coulon, Pierre‐Eugène; Khomenkov, V.; Dufour, Christian; Monnet, I.; Toulemonde, M.; Perruchas, Sandrine; Gacoin, Thierry; Mailly, D.; Lafosse, Xavier; Ulysse, C.; Dawi, Elmuez A.

doi:10.1103/physrevb.86.035450

Cited by 54 publications

(63 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Small fluctuations in the elongation rate are nonetheless observed [see Figs. 1(b)-1(d)], as prolate nanoparticles originating from smaller or bigger nanospheres, respectively, evolve further away or less far at the same fluence values (see previous work [65,67,71] for a quantitative study of the shaping of gold nanoparticles by a swift heavyion beam).…”

Section: Experimental Methodsmentioning

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

View full text Add to dashboard Cite

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.

show abstract

Section: Experimental Methodsmentioning

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

View full text Add to dashboard Cite

show abstract

“…Subsequent very rapid quenching results in the formation of an ion track, if the cooling rate is fast enough for avoiding complete epitaxial recrystallization. The hypotheses underlying the i-TS model have been critically analyzed [55,56], and several variations or extensions were put forward by different research groups for explaining track formation in semiconductors [18,57] and insulators [58] and for explaining the elongation of gold clusters embedded in an amorphous matrix [52,59].…”

Section: Introductionmentioning

confidence: 99%

Track formation in III-N semiconductors irradiated by swift heavy ions and fullerene and re-evaluation of the inelastic thermal spike model

et al. 2015

Self Cite

View full text Add to dashboard Cite

International audienceAlN, GaN, and InN were irradiated at room temperature with monatomic swift heavy ions and high-energy fullerenes. Ion track formation was studied using transmission electron microscopy in both plane view and cross-sectional modes. A full experimental description of ion track formation in these compounds is presented. AlN shows a remarkable resistance towards track formation; InN is the most sensitive and shows partial decomposition, likely into N-2 and metallic clusters; the overlapping of the amorphous tracks in GaN does not give an amorphous layer because of a track-induced recrystallization. We discuss the application of the inelastic thermal spike model, which allows good and simple predictions of track radii in oxides, to the studied III-nitrides, and in general to semiconductors

show abstract

“…Recently, with the growing use of nanostructured systems in various types of technological devices, the understanding of specificities in energy deposition and damage production by radiation in matter at the nanoscale has become a critical issue. Unique effects of energetic ions on nanoscale systems have already been reported and successfully applied to engineering of materials [10][11][12][13]. Nevertheless, very little has been reported so far on a direct comparison of radiation effects of heavy ions in a material at bulk and spatially confined conditions.…”

mentioning

confidence: 99%

Confinement Effects of Ion Tracks in Ultrathin Polymer Films

et al. 2015

View full text Add to dashboard Cite

We show direct experimental evidence that radiation effects produced by single MeV heavy ions on a polymer surface are weakened when the length of the ion track in the material is confined into layers of a few tens of nanometers. Deviation from the bulk (thick film) behavior of ion-induced craters starts at a critical thickness as large as ∼40 nm, due to suppression of long-range additive effects of excited atoms along the track. Good agreement was found between the experimental results, molecular dynamic simulations, and an analytical model.

show abstract

Rational description of the ion-beam shaping mechanism

Cited by 54 publications

References 23 publications

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

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

Track formation in III-N semiconductors irradiated by swift heavy ions and fullerene and re-evaluation of the inelastic thermal spike model

Confinement Effects of Ion Tracks in Ultrathin Polymer Films

Contact Info

Product

Resources

About