Dispersion of the nonlinear susceptibility in gold nanoantennas | Zendy

Vanessa Knittel | Zendy; Marco Fischer | Zendy; M. Vennekel | Zendy; Tobias Rybka | Zendy; Alfred Leitenstorfer | Zendy; Daniele Brida | Zendy

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Dispersion of the nonlinear susceptibility in gold nanoantennas

Author(s) -

Vanessa Knittel,

Marco Fischer,

M. Vennekel,

Tobias Rybka,

Alfred Leitenstorfer,

Daniele Brida

Publication year - 2017

Publication title -

physical review. b./physical review. b

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.78

H-Index - 465

eISSN - 2469-9969

pISSN - 2469-9950

DOI - 10.1103/physrevb.96.125428

Subject(s) - femtosecond , plasmon , dispersion (optics) , excitation , materials science , photoluminescence , wavelength , nonlinear optics , optoelectronics , excitation wavelength , nanostructure , nonlinear system , optics , antenna (radio) , physics , laser , nanotechnology , telecommunications , quantum mechanics , computer science

Optical nanoantennas are excellent tools for accessing the nonlinear response of noble metals owing to the strong enhancement of light-matter interaction occurring in the near-field. For example, excitation of gold nanostructures with intense radiation triggers both coherent and incoherent phenomena such as third-harmonic generation (THG) [1] and multi-photon photoluminescence (MPPL), respectively [2, 3]. In this work, we study the interplay between these frequency conversion mechanisms in order to unveil the effective 2(3) nonlinear response of metals.

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