Second-harmonic generation by a graphene nanoparticle | Zendy

Daria A. Smirnova | Zendy; Ilya V. Shadrivov | Zendy; Andrey E. Miroshnichenko | Zendy; Alexander I. Smirnov | Zendy; Yuri S. Kivshar | Zendy

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Second-harmonic generation by a graphene nanoparticle

Author(s) -

Daria A. Smirnova,

Ilya V. Shadrivov,

Andrey E. Miroshnichenko,

Alexander I. Smirnov,

Yuri S. Kivshar

Publication year - 2014

Publication title -

physical review b

Language(s) - English

Resource type - Journals

eISSN - 1538-4489

pISSN - 1098-0121

DOI - 10.1103/physrevb.90.035412

Subject(s) - multipole expansion , graphene , second harmonic generation , scattering , electromagnetic radiation , physics , nonlinear system , electromagnetic field , harmonic , high harmonic generation , directivity , optics , materials science , computational physics , quantum mechanics , laser , telecommunications , computer science , antenna (radio)

We study the second-harmonic generation by a spherical dielectric nanoparticle covered by graphene. We demonstrate that a strong nonlinear response is caused by an induced surface current in the graphene nanoparticle illuminated by an external electromagnetic wave. We obtain analytical expressions for the field multipoles characterizing the second-harmonic radiation and analyze the dependence of intensity and directivity of the nonlinearscatteringonthefrequencyandstructureoftheelectromagneticfield,revealingtheasymmetricradiation patterns due to constructive multipole interference for the resonantly enhanced second-harmonic generation.

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