Switchable unidirectional second-harmonic emission through GaAs nanoantennas

Lei Xu; Grégoire Saerens; Maria Timofeeva; Andrey E. Miroshnichenko; Rocio Camacho-Morales; Irina Volkovskaya; Daria A. Smirnova; Mykhaylo Lysevych; Lujun Huang; Marcus Cai; Fouad Karouta; H. Hoe Tan; Martti Kauranen; Chennupati Jagadish; Rachel Grange; Dragomir N. Neshev; Mohsen Rahmani

doi:10.1117/12.2539887

30 December 2019 Switchable unidirectional second-harmonic emission through GaAs nanoantennas

Lei Xu, Grégoire Saerens, Maria Timofeeva, Andrey E. Miroshnichenko, Rocio Camacho-Morales, Irina Volkovskaya, Daria A. Smirnova, Mykhaylo Lysevych, Lujun Huang, Marcus Cai, Fouad Karouta, H. Hoe Tan, Martti Kauranen, Chennupati Jagadish, Rachel Grange, Dragomir N. Neshev, Mohsen Rahmani

Author Affiliations +

Proceedings Volume 11200, AOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019; 112000J (2019) https://doi.org/10.1117/12.2539887
Event: ANZCOP, 2019, Melbourne, Australia

Abstract

Switching the scattering direction of high-index dielectric nanoantennas between forward and backward, via Mie resonances in the linear regime, has been widely studied, recently. However, switching the harmonic emission of nanoantennas without applying any physical change to the antennas, such as geometry, or environment, is a chal- lenging task that has not been demonstrated yet. Here, we investigate multipolar second-harmonic switch from GaAs nanoantennas. Based on the peculiar nonlinearities of zinc-blende semiconductors, we demonstrate both theoretically and experimentally unidirectional nonlinear emission routing and switching via pump polarization control. Our results offer exciting opportunities for nonlinear nanophotonics technologies, such as nanoscale light routing elements, nonlinear light sources, nonlinear imaging, multifunctional flat optical elements.

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Lei Xu, Grégoire Saerens, Maria Timofeeva, Andrey E. Miroshnichenko, Rocio Camacho-Morales, Irina Volkovskaya, Daria A. Smirnova, Mykhaylo Lysevych, Lujun Huang, Marcus Cai, Fouad Karouta, H. Hoe Tan, Martti Kauranen, Chennupati Jagadish, Rachel Grange, Dragomir N. Neshev, and Mohsen Rahmani "Switchable unidirectional second-harmonic emission through GaAs nanoantennas", Proc. SPIE 11200, AOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019, 112000J (30 December 2019); https://doi.org/10.1117/12.2539887

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KEYWORDS

Gallium arsenide

Nanoantennas

Nonlinear optics

Dielectrics

Second-harmonic generation

Switching

Physics

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