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Ultrathin Second‐Harmonic Metasurfaces with Record‐High Nonlinear Optical Response
Author(s) -
Lee Jongwon,
Nookala Nishant,
GomezDiaz J. Sebastian,
Tymchenko Mykhailo,
Demmerle Frederic,
Boehm Gerhard,
Amann MarkusChristian,
Alù Andrea,
Belkin Mikhail A.
Publication year - 2016
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201500723
Subject(s) - nonlinear optical , second harmonic generation , harmonic , nonlinear system , power (physics) , nonlinear optics , materials science , infrared , range (aeronautics) , optoelectronics , service (business) , computer science , optics , engineering physics , physics , acoustics , laser , quantum mechanics , economy , economics , composite material
Ultrathin metasurfaces with record‐high nonlinear optical response of 1.2 × 10 6 pm V −1 for second harmonic generation are experimentally demonstrated in the mid‐infrared spectral range. A second harmonic power conversion efficiency of 0.075% is achieved in a 400‐nm‐thick ( λ /25) metasurface at a pump intensity of only 15 kW cm −2 .