Direct Comparison of Second Harmonic Generation and Two-Photon Photoluminescence from Single Connected Gold Nanodimers

Jiyong Wang 1, 2 Jérémy Butet 3 Anne-Laure Baudrion 2 Andreas Horrer 4, 5 Gaëtan Lévêque 6 Olivier Martin 3 Alfred Meixner 1, 5 Monika Fleischer 4, 5 Pierre-Michel Adam 2 Anke Horneber 1, 5 Dai Zhang 1, 5
1 Institute of Physical and Theoretical Chemistry, University of Tübingen, Germany
2 LNIO - Laboratoire de Nanotechnologie et d'Instrumentation Optique
ICD - Institut Charles Delaunay
3 Swiss Federal Institute of Technology
4 Eberhard Karls Universität Tübingen
5 Center for Light-Matter Interaction, Sensors & Analytics (LISA+)
6 IEMN - Institut d’Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520
Abstract : In this article we compare the two-photon photoluminescence and second harmonic generation from single connected gold nanodimers. Analyzing the particle size-dependent nonlinear optical spectra and performing excitation polarization resolved measurements using an experimental setup combining a femtosecond laser source with a parabolic mirror, we show that second harmonic generation and two-photon photoluminescence have different behaviors despite the same expected fundamental intensity-dependence. For further understanding of the observed phenomena, the plasmon resonances of single nanodimers are investigated using dark-field optical microscopy, and calculations are performed with Green’s tensor method. Furthermore, the underlying mechanisms explaining the differences between these two optical processes are investigated using a surface integral equation method for the nonlinear computations. This study reveals that the different trends in the polarization-dependences of two-photon photoluminescence and second harmonic generation with the increasing diameters of the connected discs are due to their distinct physical nature, resulting in specific rules for plasmon enhancement and different coherence properties. Furthermore, this article clearly points out that special care has to be taken when two-photon photoluminescence and second harmonic generation are used to evaluate the amplitudes of electromagnetic hot-spots generated in plasmonic nanostructures.
Document type :
Journal articles
Complete list of metadatas
https://hal-utt.archives-ouvertes.fr/hal-02303933
Contributor : Daniel Gavrysiak <>
Submitted on : Wednesday, October 2, 2019 - 4:55:23 PM
Last modification on : Thursday, October 3, 2019 - 1:27:37 AM

Identifiers

Collections

UNIV-VALENCIENNES | UNIV-LILLE | P2MN | UTT

Citation

Jiyong Wang, Jérémy Butet, Anne-Laure Baudrion, Andreas Horrer, Gaëtan Lévêque, et al.. Direct Comparison of Second Harmonic Generation and Two-Photon Photoluminescence from Single Connected Gold Nanodimers. Journal of Physical Chemistry C, American Chemical Society, 2016, 120 (31), pp.17699-17710. ⟨10.1021/acs.jpcc.6b04850⟩. ⟨hal-02303933⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

9

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD