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Lee, Jongwon; Nookala, Nishant; Gomez-Diaz, J. Sebastian; Tymchenko, Mykhailo; Demmerle, Frederic; Boehm, Gerhard; Amann, Markus-Christian; Alù, Andrea; Belkin, Mikhail A.
Advanced optical materials, 05/2016, Letnik: 4, Številka: 5Journal Article
Ultrathin metasurfaces with record‐high nonlinear optical response of 1.2 × 106 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.
