TY - GEN
T1 - Switchable unidirectional second-harmonic emission through GaAs nanoantennas
AU - Xu, Lei
AU - Saerens, Grégoire
AU - Timofeeva, Maria
AU - Miroshnichenko, Andrey E.
AU - Camacho-Morales, Rocio
AU - Volkovskaya, Irina
AU - Smirnova, Daria A.
AU - Lysevych, Mykhaylo
AU - Huang, Lujun
AU - Cai, Marcus
AU - Karouta, Fouad
AU - Hoe Tan, H.
AU - Kauranen, Martti
AU - Jagadish, Chennupati
AU - Grange, Rachel
AU - Neshev, Dragomir N.
AU - Rahmani, Mohsen
N1 - jufoid=71479
PY - 2019
Y1 - 2019
N2 - 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.
AB - 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.
KW - Dielectric nanoresonators
KW - Mie resonance
KW - Second harmonic generation
KW - Unidirectional emission
U2 - 10.1117/12.2539887
DO - 10.1117/12.2539887
M3 - Conference contribution
AN - SCOPUS:85079683447
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - AOS Australian Conference on Optical Fibre Technology, ACOFT 2019 and Australian Conference on Optics, Lasers, and Spectroscopy, ACOLS 2019
A2 - Mitchell, Arnan
A2 - Rubinsztein-Dunlop, Halina
PB - SPIE
T2 - Australian Conference on Optical Fibre Technology and Australian Conference on Optics, Lasers, and Spectroscopy
Y2 - 9 December 2019 through 12 December 2019
ER -