Tensorial phase control in nonlinear meta-optics
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- 19 February 2021
- journal article
- research article
- Published by Optica Publishing Group in Optica
- Vol. 8 (2), 269-276
- https://doi.org/10.1364/optica.413329
Abstract
Nonlinear metasurfaces have recently brought harmonic generation to subwavelength level, with spectral and polarization control unachievable in bulk crystals. Not only does nonlinear meta-optics enable the investigation of nonlinear physics at the nanoscale, but it also opens promising technological perspectives. To date, however, no full-phase control has been demonstrated on a harmonic field generated with a sufficient efficiency for most practical purposes. In this work, based on the chi((2)) fully tensorial features of AlGaAs metasurfaces, we propose a robust method to generate 0 - 2 pi phase-encoded second harmonic light for nonlinear wavefront shaping, experimentally demonstrating nonlinear beam steering and all-dielectric metalenses that generate and focus second harmonic beams to sub-wavelength spot sizes. Nonlinear generation with record efficiency and phase control are achieved in nanostructured arrays that are fully compatible with mature III-V semiconductor technology. This breakthrough paves the way for the development of ultrathin, free-space photonic devices for nonlinear imaging, including night vision. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing AgreementKeywords
Funding Information
- Agence Nationale de la Recherche (ANR-18CE24-0026)
This publication has 43 references indexed in Scilit:
- Flat optics with dispersion-engineered metasurfacesNature Reviews Materials, 2020
- Nonlinear optics with resonant metasurfacesMRS Bulletin, 2020
- Phase-only transmissive spatial light modulator based on tunable dielectric metasurfaceScience, 2019
- Quantum metasurface for multiphoton interference and state reconstructionScience, 2018
- Nonlinear metasurfaces: a paradigm shift in nonlinear opticsMaterials Today, 2018
- Vortex Laser based on III-V semiconductor metasurface: direct generation of coherent Laguerre-Gauss modes carrying controlled orbital angular momentumScientific Reports, 2016
- Metalenses at visible wavelengths: Diffraction-limited focusing and subwavelength resolution imagingScience, 2016
- Dielectric metasurfaces for complete control of phase and polarization with subwavelength spatial resolution and high transmissionNature Nanotechnology, 2015
- Subwavelength-thick lenses with high numerical apertures and large efficiency based on high-contrast transmitarraysNature Communications, 2015
- Design and fabrication of blazed binary diffractive elements with sampling periods smaller than the structural cutoffJournal of the Optical Society of America A, 1999