Preprint Article Version 1 This version is not peer-reviewed

Highly-efficient longitudinal second-harmonic generation from doubly-resonant AlGaAs nanoantennas

Version 1 : Received: 23 August 2018 / Approved: 23 August 2018 / Online: 23 August 2018 (11:31:14 CEST)

A peer-reviewed article of this Preprint also exists.

Xu, L.; Rahmani, M.; Smirnova, D.; Zangeneh Kamali, K.; Zhang, G.; Neshev, D.; Miroshnichenko, A.E. Highly-Efficient Longitudinal Second-Harmonic Generation from Doubly-Resonant AlGaAs Nanoantennas. Photonics 2018, 5, 29. Xu, L.; Rahmani, M.; Smirnova, D.; Zangeneh Kamali, K.; Zhang, G.; Neshev, D.; Miroshnichenko, A.E. Highly-Efficient Longitudinal Second-Harmonic Generation from Doubly-Resonant AlGaAs Nanoantennas. Photonics 2018, 5, 29.

Journal reference: Photonics 2018, 5, 29
DOI: 10.3390/photonics5030029

Abstract

We design an asymmetric nonlinear optical nanoantenna composed of a dielectric nanodisk and an adjacent nanobar. The proposed composite structure made of AlGaAs exhibits resonant response at both the fundamental and doubled frequencies. Being driven by the strong magnetic dipole resonance at the pump wavelength and a high-quality mode at the harmonic wavelength, the efficient second-harmonic radiation is generated predominantly along the vertical directions under the normally incident plane-wave excitation.

Subject Areas

Second harmonic generation, Mie resonances, all-dielectric nanoparticles

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