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

Article Article scientifique Article Multi-Order Investigation of the Nonlinear Susceptibility Tensors of Individual Nanoparticles eng 2016 author Schmidt Cédric 678348 author Riporto Jérémy 853360 author Uldry Aline 752306 author Rogov Andrii 760651 author Mugnier Yannick 528873 author Dantec Ronan Le author Wolf Jean-Pierre 0000-0003-3729-958X 631266 author Bonacina Luigi 0000-0003-0476-4473 632447 25415 10.1038/srep25415 2045-2322 http://www.nature.com/articles/srep25415 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. Dewey 500.2 35 Groupe de physique appliquée 135 false 676 Groupe Wolf Scientific reports 6 29401330-3893-4eea-a877-4376f42b1db5 Article (Published version) Public Schmidt_SciRep_2016.pdf 585770 application/pdf openAccess Faculté des sciences / Section de physique / Groupe de physique appliquée

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Multi-Order Investigation of the Nonlinear Susceptibility Tensors of Individual Nanoparticles	Scientific reports			2016	726	337

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