Fabrication of Ion-Shaped Anisotropic Nanoparticles and their Orientational Imaging by Second-Harmonic Generation Microscopy

Abdallah Slablab; Tero J. Isotalo; Jouni Mäkitalo; Leo Turquet; Pierre-Eugene COULON; Tapio Niemi; Christian Ulysse; Mathieu  Kociak; Dominique Mailly; Giancarlo Rizza; Martti Kauranen

doi:10.1038/srep37469

Fabrication of Ion-Shaped Anisotropic Nanoparticles and their Orientational Imaging by Second-Harmonic Generation Microscopy

Abdallah Slablab, Tero J. Isotalo, Jouni Mäkitalo, Leo Turquet, Pierre-Eugene COULON, Tapio Niemi, Christian Ulysse, Mathieu Kociak, Dominique Mailly, Giancarlo Rizza, Martti Kauranen

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Abstract

Ion beam shaping is a novel and powerful tool to engineer nanocomposites with effective threedimensional (3D) architectures. In particular, this technique offers the possibility to precisely control the size, shape and 3D orientation of metallic nanoparticles at the nanometer scale while keeping the particle volume constant. Here, we use swift heavy ions of xenon for irradiation in order to successfully
fabricate nanocomposites consisting of anisotropic gold nanoparticle that are oriented in 3D and embedded in silica matrix. Furthermore, we investigate individual nanorods using a nonlinear optical microscope based on second-harmonic generation (SHG). A tightly focused linearly or radially-polarized
laser beam is used to excite nanorods with different orientations. We demonstrate high sensitivity of the SHG response for these polarizations to the orientation of the nanorods. The SHG measurements are in excellent agreement with the results of numerical modeling based on the boundary element method.

Original language	English
Article number	37469
Number of pages	10
Journal	Scientific Reports
Volume	6
Issue number	37469
DOIs	https://doi.org/10.1038/srep37469
Publication status	Published - 24 Nov 2016
Publication type	A1 Journal article-refereed

Keywords

optics
plasmonics
Nonlinear microscopy
IRRADIATION

Publication forum classification

Publication forum level 2

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1038/srep37469Licence: CC BY

slablab et al. 2016
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Final published version, 1.21 MBLicence: CC BY

http://urn.fi/URN:NBN:fi:tty-201612154861Licence: CC BY

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title = "Fabrication of Ion-Shaped Anisotropic Nanoparticles and their Orientational Imaging by Second-Harmonic Generation Microscopy",

abstract = "Ion beam shaping is a novel and powerful tool to engineer nanocomposites with effective threedimensional (3D) architectures. In particular, this technique offers the possibility to precisely control the size, shape and 3D orientation of metallic nanoparticles at the nanometer scale while keeping the particle volume constant. Here, we use swift heavy ions of xenon for irradiation in order to successfullyfabricate nanocomposites consisting of anisotropic gold nanoparticle that are oriented in 3D and embedded in silica matrix. Furthermore, we investigate individual nanorods using a nonlinear optical microscope based on second-harmonic generation (SHG). A tightly focused linearly or radially-polarizedlaser beam is used to excite nanorods with different orientations. We demonstrate high sensitivity of the SHG response for these polarizations to the orientation of the nanorods. The SHG measurements are in excellent agreement with the results of numerical modeling based on the boundary element method.",

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AU - Slablab, Abdallah

AU - Isotalo, Tero J.

AU - Mäkitalo, Jouni

AU - Turquet, Leo

AU - COULON, Pierre-Eugene

AU - Niemi, Tapio

AU - Ulysse, Christian

AU - Kociak, Mathieu

AU - Mailly, Dominique

AU - Rizza, Giancarlo

AU - Kauranen, Martti

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AB - Ion beam shaping is a novel and powerful tool to engineer nanocomposites with effective threedimensional (3D) architectures. In particular, this technique offers the possibility to precisely control the size, shape and 3D orientation of metallic nanoparticles at the nanometer scale while keeping the particle volume constant. Here, we use swift heavy ions of xenon for irradiation in order to successfullyfabricate nanocomposites consisting of anisotropic gold nanoparticle that are oriented in 3D and embedded in silica matrix. Furthermore, we investigate individual nanorods using a nonlinear optical microscope based on second-harmonic generation (SHG). A tightly focused linearly or radially-polarizedlaser beam is used to excite nanorods with different orientations. We demonstrate high sensitivity of the SHG response for these polarizations to the orientation of the nanorods. The SHG measurements are in excellent agreement with the results of numerical modeling based on the boundary element method.

KW - optics

KW - plasmonics

KW - Nonlinear microscopy

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ER -

Fabrication of Ion-Shaped Anisotropic Nanoparticles and their Orientational Imaging by Second-Harmonic Generation Microscopy

Abstract

Keywords

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ASJC Scopus subject areas

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