Giant optical nonlinearity of a single plasmonic nanostructure | Zendy

Pavel N. Melentiev | Zendy; A. E. Afanasiev | Zendy; A. A. Kuzin | Zendy; A. S. Baturin | Zendy; V. I. Balykin | Zendy

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Giant optical nonlinearity of a single plasmonic nanostructure

Author(s) -

Pavel N. Melentiev,

A. E. Afanasiev,

A. A. Kuzin,

A. S. Baturin,

V. I. Balykin

Publication year - 2013

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.21.013896

Subject(s) - nanorod , plasmon , excitation , nanostructure , materials science , optics , optoelectronics , resonator , surface plasmon , second harmonic generation , nonlinear optics , electric field , nanotechnology , physics , laser , quantum mechanics

We realize giant optical nonlinearity of a single plasmonic nanostructure which we call a split hole resonator (SHR). The SHR is the marriage of two basic elements of nanoplasmonics, a nanohole and a nanorod. A peak field intensity in the SHR occurs at the single tip of the nanorod inside the nanohole. The peak field is much stronger than those of the nanorod and nanohole, because the SHR field involves contributions from the following two field-enhancement mechanisms: (1) the excitation of surface plasmon resonances and (2) the lightning-rod effect. Here, we demonstrate the use of the SHR as a highly efficient nonlinear optical element for: (i) the generation of the third harmonic from a single SHR; (ii) the excitation of intense multiphoton luminescence from a single SHR.

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