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Structured Light for Second-Harmonic Spectroscopy in Mie-Resonant AlGaAs Nanoparticles

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Abstract

We employ doughnut-shaped cylindrical vector beams to observe the enhanced second-harmonic generation from individual subwavelength AlGaAs nanoparticles which support both electric and magnetic multipolar Mie-type resonances at the fundamental and double frequencies.

© 2019 The Author(s)

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