@inproceedings{d6524c2a9e334e568fee59ad6968166b,
title = "Multipolar analysis of second-harmonic generation in (111) Gallium Arsenide nanoparticles",
abstract = "We perform multipolar analysis of second-harmonic generation (SHG) from (111)-grown gallium arsenide (GaAs) nanoantennas and discuss its specifics. It was experimentally demonstrated that the conversion efficiency in axially-symmetric (111) GaAs nanoparticles remains constant under the polarization rotation of normally incident radiation in a wide range of particle sizes, while the SHG radiation pattern changes. We apply the analytical method based on the Lorentz lemma to explain this behaviour. The induced nonlinear current is decomposed into two rotating contributions, which are shown to generate multipoles of different parities. Thus, the total SHG intensity in the far-field is proved to be independent of the in-plane rotation of the pump polarization. Nevertheless, due to the threefold symmetry of the crystal with regard to the (111) direction, the SHG radiation pattern rotates around the polar axis repeating its shape every 60°.",
author = "I. Volkovskaya and D. Smirnova and L. Xu and J. Sautter and A. Miroshnichenko and M. Lysevych and R. Camacho-Morales and Kamali, {K. Z.} and F. Karouta and K. Vora and Tan, {H. H.} and M. Kauranen and I. Staude and C. Jagadish and D. Neshev and M. Rahmani",
note = "jufoid=71018; International Conference on Metamaterials and Nanophotonics, METANANO 2019 ; Conference date: 15-07-2019 Through 19-07-2019",
year = "2020",
doi = "10.1088/1742-6596/1461/1/012185",
language = "English",
series = "Journal of Physics: Conference Series",
publisher = "Institute of Physics Publishing",
booktitle = "4th International Conference on Metamaterials and Nanophotonics, METANANO 2019",
}