Backward Phase-Matched Second-Harmonic Generation from Stacked Metasurfaces

Timo Stolt, Jeonghyun Kim, Sébastien Héron, Anna Vesala, Younghwan Yang, Jungho Mun, Minkyung Kim, Mikko. J. Huttunen, Robert Czaplicki, Martti Kauranen, Junsuk Rho, and Patrice Genevet

Phys. Rev. Lett. 126, 033901 – Published 22 January 2021

Abstract

We demonstrate phase-matched second-harmonic generation (SHG) from three-dimensional metamaterials consisting of stacked metasurfaces. To achieve phase matching, we utilize a novel mechanism based on phase engineering of the metasurfaces at the interacting wavelengths, facilitating phase-matched SHG in the unconventional backward direction. Stacking up to five metasurfaces,we obtain a phase-matched SHG signal, which scales superlinearly with the number of layers. Our results motivate further investigations to achieve higher conversion efficiencies also with more complex wave fronts.

Received 16 June 2020
Accepted 16 December 2020

DOI:https://doi.org/10.1103/PhysRevLett.126.033901

Physics Subject Headings (PhySH)

Metamaterials Nonlinear optics Plasmonics Second order nonlinear optical processes

Atomic, Molecular & Optical

Authors & Affiliations

Timo Stolt ^1,*, Jeonghyun Kim^2,*, Sébastien Héron ³, Anna Vesala¹, Younghwan Yang², Jungho Mun⁵, Minkyung Kim², Mikko. J. Huttunen ¹, Robert Czaplicki ⁴, Martti Kauranen ¹, Junsuk Rho ^2,5,6,‡, and Patrice Genevet ^3,†

¹Photonics Laboratory, Physics Unit, Tampere University, FI-33014 Tampere, Finland
²Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
³Université Côte d’Azur, CNRS, CRHEA, rue Bernard Gregory, Sophia Antipolis, 06560 Valbonne, France
⁴Institute of Physics, Faculty of Physics, Astronomy, and Informatics, Nicolaus Copernicus University, Grudziądzka 5/7, 87-100 Toruń, Poland
⁵Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
⁶National Institute of Nanomaterials Technology (NINT), Pohang 37673, Republic of Korea

^*These authors contributed equally to this work.
^†Corresponding author. patrice.genevet@crhea.cnrs.fr
^‡Corresponding author. jsrho@postech.ac.kr

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Vol. 126, Iss. 3 — 22 January 2021

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