@inproceedings{dcb1969a91df4ea4a29b261a69801072,
title = "Nonlinear Circular Dichroism in the Second-Harmonic Generation from AlGaAs Nanoparticle Dimers",
abstract = "Here we study the nonlinear response of a nanoparticle dimer illuminated by a circularly polarized light. We observe, for the first time to our knowledge, nonvanishing circular dichroism of the second - harmonic signal due to the interplay of multipolar magnetic and electric Mie resonances provided the dimer axes is oriented under an angle to the crystalline lattice of the dielectric material. We develop a general formalism and modal theory to explain the origin of this unexpected phenomenon and verify our general theory by some experimental results for the resonant second harmonic generation (SHG) from the AlGaAs dimers placed on an engineering substrate. Our results show that Mie-resonant AlGaAs nanoparticles combined into a dimer with an arbitrarily oriented [100] crystalline lattice indeed reveal a non-zero and nonvanishing circular dichroism of the second harmonic signal.",
author = "Elizaveta Melik-Gaykazyan and Kristina Frizyuk and Choi, \{Jae Hyuck\} and Mihail Petrov and Park, \{Hong Gyu\} and Yuri Kivshar",
note = "Publisher Copyright: {\textcopyright} 2021 IEEE.; 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021 ; Conference date: 21-06-2021 Through 25-06-2021",
year = "2021",
month = jun,
doi = "10.1109/CLEO/Europe-EQEC52157.2021.9541584",
language = "English",
series = "2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021",
address = "United States",
}