Resonant dielectric metasurfaces in strong optical fields

Year: 2021

Authors: Zubyuk V., Carletti L., Shcherbakov M., Kruk S.

Autors Affiliation: Lomonosov Moscow State Univ, Fac Phys, Moscow 119991, Russia; Univ Brescia, Dept Informat Engn, I-25123 Brescia, Italy; Univ Brescia, Natl Inst Opt CNR INO, I-25123 Brescia, Italy; Cornell Univ, Sch Appl & Engn Phys, Ithaca, NY 14853 USA; Paderborn Univ, Dept Phys, D-33098 Paderborn, Germany; Australian Natl Univ, Nonlinear Phys Ctr, Res Sch Phys, Canberra, ACT 2601, Australia.

Abstract: Optical materials are undergoing revolutionary transformations driven by nanotechnology. Our ability to engineer structures at a scale smaller than the wavelength of light enables new properties and functionalities otherwise not available in natural bulk optical materials. A class of such components-dielectric metasurfaces-employs two-dimensional arrays of designer resonant nanoscale elements whose optical response is defined by their geometry. While linear regimes of interactions between dielectric metasurfaces and moderately intense light have already formed a mature field of applied research and engineering, new frontiers are being actively explored in the nonlinear optical regime describing interactions of metasurfaces with strong optical fields. In this Research Update, we cover the most recent progress along with several directions of research within the field of nonlinear optics of dielectric metasurfaces. Specifically, we review approaches to design and fabricate metasurfaces with high local field enhancements that facilitate nonlinear light-matter interactions, outline nonlinearity-enabled functionalities of dielectric metasurfaces, explore resonant metasurfaces in the strong-field non-perturbative regime, and discuss the implications of the time-variant refractive index in metasurfaces that interact with strong optical fields produced by laser pulses.

Journal/Review: APL MATERIALS

Volume: 9 (6)      Pages from: 60701-1  to: 60701-15

More Information: The authors are indebted to Professor Yuri Kivshar and Professor Ilya Shadrivov for useful discussions. S.K. acknowledges the Alexander von Humboldt Foundation for financial support. L.C. acknowledges financial support from the European Commission Horizon 2020 H2020-FETOPEN-2018-2020 through Grant Agreement No. 899673 (METAFAST), the National Research Council Joint Laboratories program through Project No. SAC.AD002.026 (OMEN), and the Italian Ministry of University and Research (MIUR) through the PRIN project NOMEN (No. 2017MP7F8F). V.Z. acknowledges financial support from the Ministry of Science and Higher Education of the Russian Federation (No. 14.W03.31.0008) and the MSU Quantum Technology Centre. M.S. and V.Z. acknowledge support from the Russian Science Foundation (No. 18-12-00475).
KeyWords: High-harmonic Generation; Quasi-bound-states; Frequency-conversion; Nonlinear Metasurfaces; Fano Resonance; Meta-atoms; Light; Phase; Mode; Nonreciprocity
DOI: 10.1063/5.0048937

Citations: 24
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