Loading…

Delocalization of Nonlinear Optical Responses in Plasmonic Nanoantennas

Remote excitation and emission of two-photon luminescence and second-harmonic generation are observed in micrometer long gold rod optical antennas upon local illumination with a tightly focused near-infrared femtosecond laser beam. We show that these nonlinear radiations are emitted from the entire...

Full description

Saved in:
Bibliographic Details
Published in:Physical review letters 2015-11, Vol.115 (19), p.197401-197401, Article 197401
Main Authors: Viarbitskaya, Sviatlana, Demichel, Olivier, Cluzel, Benoit, Colas des Francs, GĂ©rard, Bouhelier, Alexandre
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Remote excitation and emission of two-photon luminescence and second-harmonic generation are observed in micrometer long gold rod optical antennas upon local illumination with a tightly focused near-infrared femtosecond laser beam. We show that these nonlinear radiations are emitted from the entire antenna and the measured far-field angular patterns bear the information regarding the nature and origins of the respective nonlinear processes. We demonstrate that the nonlinear responses are locally induced by a propagating surface plasmon at the excitation frequency, enabling thereby a polariton-mediated spatial tailoring and design of coherent and incoherent nonlinear responses.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.115.197401