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Title

Multi-Order Investigation of the Nonlinear Susceptibility Tensors of Individual Nanoparticles

Authors
Riporto, Jérémy
Dantec, Ronan Le
Published in Scientific Reports. 2016, vol. 6, p. 25415
Abstract We use Hyper Rayleigh Scattering and polarization resolved multiphoton microscopy to investigate simultaneously the second and third-order nonlinear response of Potassium Niobate and Bismuth Ferrite harmonic nanoparticles. We first derive the second-to-third harmonic intensity ratio for colloidal ensembles and estimate the average third-order efficiency of these two materials. Successively, we explore the orientation dependent tensorial response of individual nanoparticles fixed on a substrate. The multi-order polarization resolved emission curves are globally fitted with an analytical model to retrieve individual elements of susceptibility tensors.
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Research group Groupe Wolf
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SCHMIDT, Cédric et al. Multi-Order Investigation of the Nonlinear Susceptibility Tensors of Individual Nanoparticles. In: Scientific Reports, 2016, vol. 6, p. 25415. https://archive-ouverte.unige.ch/unige:84336

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Deposited on : 2016-06-08

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