Second harmonic spectroscopy of ZnO, BiFeO<sub>3</sub> and LiNbO<sub>3</sub> nanocrystals

Riporto, Jérémy; Urbain, Mathias; Mugnier, Yannick; Multian, Volodymyr; Riporto, Florian; Bredillet, Kévin; Beauquis, Sandrine; Galez, Christine; Monnier, Virginie; Chevolot, Yann; Gayvoronsky, Volodymyr; Bonacina, Luigi; Le Dantec, Ronan

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Title		Second harmonic spectroscopy of ZnO, BiFeO₃ and LiNbO₃ nanocrystals
Authors		Riporto, Jérémy Urbain, Mathias Mugnier, Yannick Multian, Volodymyr Riporto, Florian Bredillet, Kévin Beauquis, Sandrine Galez, Christine Monnier, Virginie Chevolot, Yann Gayvoronsky, Volodymyr Bonacina, Luigi Le Dantec, Ronan show all authors [1 - 13]
Published in		Optical Materials Express. 2019, vol. 9, no. 4, p. 1955
Abstract		We developed a wavelength-tunable second harmonic scattering experimental setup to investigate dispersion of the nonlinear optical response of three different nanocrystal suspensions (LiNbO3, ZnO and BiFeO3). Special attention was paid to reproducibility issues with the implementation of a detailed protocol that allows correcting for the setup spectral response. The absolute, orientation-averaged second order susceptibilities of the three nanomaterials were then assessed in the 700-1300 nm spectral range evidencing very specific optical signatures. The well-defined resonances observed for ZnO and BiFeO3 near their electronic transitions were found to be poorly described by the Miller’s rule.
Keywords		Second-harmonic — Hyper Rayleigh scattering — Nanoparticles
Identifiers		DOI: 10.1364/OME.9.001955
Full text		Article (Published version) (1 MB) - Free access
Structures		Faculté des sciences / Section de physique
Research group		Groupe Wolf
Citation (ISO format)		RIPORTO, Jérémy et al. Second harmonic spectroscopy of ZnO, BiFeO₃ and LiNbO₃ nanocrystals. In: Optical Materials Express, 2019, vol. 9, n° 4, p. 1955. https://archive-ouverte.unige.ch/unige:115664