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TUTCRIS

Switchable unidirectional second-harmonic emission through GaAs nanoantennas

Tutkimustuotosvertaisarvioitu

Yksityiskohdat

AlkuperäiskieliEnglanti
OtsikkoAOS Australian Conference on Optical Fibre Technology, ACOFT 2019 and Australian Conference on Optics, Lasers, and Spectroscopy, ACOLS 2019
ToimittajatArnan Mitchell, Halina Rubinsztein-Dunlop
KustantajaSPIE
ISBN (elektroninen)9781510631403
DOI - pysyväislinkit
TilaJulkaistu - 2019
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaAustralian Conference on Optical Fibre Technology and Australian Conference on Optics, Lasers, and Spectroscopy - Melbourne, Austraalia
Kesto: 9 joulukuuta 201912 joulukuuta 2019

Julkaisusarja

NimiProceedings of SPIE - The International Society for Optical Engineering
Vuosikerta11200
ISSN (painettu)0277-786X
ISSN (elektroninen)1996-756X

Conference

ConferenceAustralian Conference on Optical Fibre Technology and Australian Conference on Optics, Lasers, and Spectroscopy
MaaAustraalia
KaupunkiMelbourne
Ajanjakso9/12/1912/12/19

Tiivistelmä

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.