Linear and nonlinear optics of metallic nanoparticles film
type: Dataset
description: In this work, the nonlinear optical response of assembled metallic nanoparticles at interfaces was studied using Second Harmonic Generation. First, the nanoparticles were characterised using incoherent second harmonic generation, a technique also called Hyper Rayleigh Scattering. Thioalkane-capped silver and gold nanoparticles, both nanospheres and nanorods, were investigated and the role of this capping layer on the quadratic hyperpolarisability of these particles was underlined. The particles were then deposited at the air/liquid interface in a Langmuir trough to investigate the role of the interparticles interactions in large assemblies. Both the linear and the nonlinear optical response of these metallic films formed at the surface of the trough provided evidence of a strong coupling between adjacent particles upon compression leading to a phase transition of the film once the interparticle distance is less than a critical value. These studies were complemented with experiments performed at the liquid/liquid interface and at the glassy carbon/electrolyte interface to examine in greater details the role of roughness at the nanoscale on the enhancement of the SHG response
landing page: https://theses.hal.science/tel-00877726
identifier: NNT: 2009LYO10179
keyword: diffusion-hyper-rayleigh
keyword: film
keyword: generation-de-second-harmonique
keyword: hyper-rayleigh-scattering
keyword: infoeu-reposemanticsdoctoralthesis
keyword: interactions
keyword: linear-optics
keyword: metallic-nanoparticles
keyword: nanoparticules-metalliques
keyword: nonlinear-optics
keyword: optique-lineaire
keyword: optique-non-lineaire
keyword: physcondcm-genphysics-physicscondensed-matter-cond-matother-cond-matother
keyword: second-harmonic-generation
keyword: theses
keyword: transition
issued: 2026-05-09T05:32:55.023808
modified: 2026-05-09T05:32:55.023813
language: en
contact point: Organization
  fn: CCSD

test_moissonnage_selune
type: Agent

Linear and nonlinear optics of metallic nanoparticles film
type: Distribution
format: HTML
access URL: https://theses.hal.science/tel-00877726
issued: 2026-05-09T05:32:55.026314
modified: 2026-05-09T05:32:54.998491