Toy model of second harmonic generation due to structuring of centrosymmetric films | Zendy

Jie Xu | Zendy; Eric Plum | Zendy; Vassili Savinov | Zendy

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Toy model of second harmonic generation due to structuring of centrosymmetric films

Author(s) -

Jie Xu,

Eric Plum,

Vassili Savinov

Publication year - 2020

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.408841

Subject(s) - metamaterial , second harmonic generation , planar , structuring , nonlinear system , physics , optics , nonlinear optics , dielectric , high harmonic generation , lattice (music) , electron , nonlinear optical , quantum mechanics , laser , computer science , acoustics , computer graphics (images) , finance , economics

We show how structuring of matter can lead to second order optical nonlinearity. Coulomb interactions involving bound electrons cause a nonlinear optical response at boundaries. We demonstrate that second order nonlinearity is proportional to the perimeter of a planar structure cut from a centrosymmetric lattice of harmonic oscillators. This proportionality and our model can instruct the design of dielectric nonlinear particles, surfaces and metamaterials for optical second harmonic generation.

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