Second harmonic spectroscopy of ZnO, BiFeO3 and LiNbO3 nanocrystals

Jérémy Riporto, Mathias Urbain, Yannick Mugnier, Volodymyr Multian, Florian Riporto, Kévin Bredillet, Sandrine Beauquis, Christine Galez, Virginie Monnier, Yann Chevolot, Volodymyr Gayvoronsky, Luigi Bonacina (+1 others)
2019 Optical Materials Express  
We developed a wavelength-tunable second harmonic scattering experimental setup to investigate dispersion of the nonlinear optical response of three different nanocrystal suspensions (LiNbO 3 , ZnO and BiFeO 3 ). 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
more » ... in the 700-1300 nm spectral range evidencing very specific optical signatures. The well-defined resonances observed for ZnO and BiFeO 3 near their electronic transitions were found to be poorly described by the Miller's rule.
doi:10.1364/ome.9.001955 fatcat:hoy7pthmyrdgrg44yyhn4tp764