Second-Harmonic Generation from Hyperbolic Plasmonic Nanorod Metamaterial Slab

TY - JOUR

T1 - Second-Harmonic Generation from Hyperbolic Plasmonic Nanorod Metamaterial Slab

AU - Marino, Giuseppe

AU - Segovia, Paulina

AU - Krasavin, Alexey V.

AU - Ginzburg, Pavel

AU - Olivier, Nicolas

AU - Wurtz, Gregory A.

AU - Zayats, Anatoly V.

PY - 2018/2/1

Y1 - 2018/2/1

N2 - Hyperbolic plasmonic metamaterials provide numerous opportunities for designing unusual linear and nonlinear optical properties. In this work, second-harmonic generation in a hyperbolic metamaterial due to a free-electron nonlinear response of a plasmonic component of the metamaterial is studied. It is shown that owing to a rich modal structure of an anisotropic plasmonic metamaterial slab, the overlap of fundamental and second-harmonic modes results in the broadband enhancement of radiated second-harmonic intensity by up to 2 orders of magnitude for TM- and TE-polarized fundamental light, compared to a smooth Au film under TM-polarised illumination. Compared to the radiated second-harmonic intensity from a bulk LiNbO3 nonlinear crystal of the same thickness, the SHG intensity from a metamaterial slab may be up to 2 orders of magnitude higher at the certain metamaterial resonances. The results open up possibilities to design tuneable frequency-doubling integratable metamaterial with the goal to overcome limitations associated with classical phase matching conditions in thick nonlinear crystals.

AB - Hyperbolic plasmonic metamaterials provide numerous opportunities for designing unusual linear and nonlinear optical properties. In this work, second-harmonic generation in a hyperbolic metamaterial due to a free-electron nonlinear response of a plasmonic component of the metamaterial is studied. It is shown that owing to a rich modal structure of an anisotropic plasmonic metamaterial slab, the overlap of fundamental and second-harmonic modes results in the broadband enhancement of radiated second-harmonic intensity by up to 2 orders of magnitude for TM- and TE-polarized fundamental light, compared to a smooth Au film under TM-polarised illumination. Compared to the radiated second-harmonic intensity from a bulk LiNbO3 nonlinear crystal of the same thickness, the SHG intensity from a metamaterial slab may be up to 2 orders of magnitude higher at the certain metamaterial resonances. The results open up possibilities to design tuneable frequency-doubling integratable metamaterial with the goal to overcome limitations associated with classical phase matching conditions in thick nonlinear crystals.

KW - hyperbolic metamaterials

KW - plasmonics

KW - second harmonic generation

UR - https://www.scopus.com/pages/publications/85040706514

U2 - 10.1002/lpor.201700189

DO - 10.1002/lpor.201700189

M3 - Article

AN - SCOPUS:85040706514

SN - 1863-8880

VL - 12

JO - Laser and Photonics Reviews

JF - Laser and Photonics Reviews

IS - 2

M1 - 1700189

ER -