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Conferences > EQEC > 2019 > ef_4 > ef_4_2
  • 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 2019),
  • paper ef_4_2

Experimental Observation of Second Harmonic Generation Enabled by Longitudinal Components in Indium Gallium Phosphide Nanowires

Nicolas Poulvellarie, Utsav Dave, Koen Alexander, Charles Ciret, Simon-Pierre Gorza, Fabrice Raineri, Sylvain Combrié, Alfredo De Rossi, Gunther Roelkens, Bart Kuyken, and François Leo

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Abstract

Novel integrated photonics platforms are having a large impact on nonlinear optics. The inherent strong confinement and highly nonlinear materials allow for ultra-efficient frequency conversion. Recent reports on second harmonic (SH) generation for example posted record conversion efficiencies in millimetre long waveguides [1,2]. These promising results predict an exciting future for frequency conversion in subwavelengths structures. Yet, the vectorial nature of waves propagating in high index contrast nanowaveguides is often overlooked. Here we demonstrate second harmonic generation enabled by the longitudinal component of both the pump and the second harmonic wave.

© 2019 IEEE

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