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Second harmonic spectroscopy of ZnO, BiFeO3 and LiNbO3 nanocrystals |
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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 | |
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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. doi: 10.1364/OME.9.001955 https://archive-ouverte.unige.ch/unige:115664 |