Subwavelength nonlinear phase control and anomalous phase matching in plasmonic metasurfaces

Nature Communications
Euclides AlmeidaYehiam Prior

Abstract

Metasurfaces, and in particular those containing plasmonic-based metallic elements, constitute an attractive set of materials with a potential for replacing standard bulky optical elements. In recent years, increasing attention has been focused on their nonlinear optical properties, particularly in the context of second and third harmonic generation and beam steering by phase gratings. Here, we harness the full phase control enabled by subwavelength plasmonic elements to demonstrate a unique metasurface phase matching that is required for efficient nonlinear processes. We discuss the difference between scattering by a grating and by subwavelength phase-gradient elements. We show that for such interfaces an anomalous phase-matching condition prevails, which is the nonlinear analogue of the generalized Snell's law. The subwavelength phase control of optical nonlinearities paves the way for the design of ultrathin, flat nonlinear optical elements. We demonstrate nonlinear metasurface lenses, which act both as generators and as manipulators of the frequency-converted signal.

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Citations

Jun 17, 2016·Nature Communications·Weimin YeThomas Zentgraf
Apr 6, 2017·Nature Communications·Ori AvayuTal Ellenbogen
Aug 22, 2017·Reports on Progress in Physics·Fei DingSergey I Bozhevolnyi
Aug 23, 2016·Nature Communications·Euclides AlmeidaYehiam Prior
Mar 14, 2019·Nanotechnology·Reuven Gordon
Jun 28, 2016·Scientific Reports·Boyuan Jin, Christos Argyropoulos
Mar 7, 2019·Light, Science & Applications·Matan GalantyAdi Salomon
Jan 10, 2018·Advanced Materials·Christian SchlickriedeThomas Zentgraf
Mar 9, 2018·Beilstein Journal of Nanotechnology·Jonathan WardMohsen Rahmani
May 29, 2018·Optics Express·Vin-Cent SuDin Ping Tsai
Sep 1, 2018·Light, Science & Applications·Basudeb SainYehiam Prior
Apr 18, 2019·Nature Communications·Shay Keren-ZurTal Ellenbogen
Apr 25, 2020·Research : a Science Partner Journal·Xuanmiao HongPeixiang Lu
Dec 12, 2019·Advanced Materials·Wenbo ZangShining Zhu
May 7, 2020·Nano Letters·Christian SchlickriedeThomas Zentgraf
Aug 19, 2020·Nature Nanotechnology·Mark LawrenceJennifer A Dionne
Nov 28, 2018·Nano Letters·Yisheng GaoShumin Xiao
Jan 5, 2019·Nano Letters·Jonathan Bar-David, Uriel Levy
Aug 20, 2019·Nano Letters·Sebastian BusschaertLukas Novotny
Dec 13, 2018·Nano Letters·Yael BlechmanYehiam Prior
May 12, 2018·Nano Letters·Lei WangYuri Kivshar
Dec 12, 2018·Nano Letters·David C HooperVentsislav K Valev
Sep 8, 2021·Chemical Reviews·Chunghwan JungJunsuk Rho

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