Mouktar NOUR MAHAMOUD PhD defense
@ - 12:00
Organic Chemistry & Interfaces (COrInt) team
Abstract
The thesis is part of the field of plasmonics, a field of modern optics driven by advances in nanotechnology. It aims to understand and exploit light-matter interactions at the nanometric scale to design artificial materials capable of manipulating light in fine detail. These materials, known as metamaterials or metasurfaces, possess novel electromagnetic properties, such as a negative refractive index, thanks to sub-wavelength structures. However, the fabrication of these structures, known as nanoresonators, often relies on complex and costly processes. The approach adopted here is distinguished by its simplicity: it explores the spontaneous self-assembly of gold nanoparticles (AuNPs) via a mechanism known as the Ouzo effect. The plasmonic nanoresonators obtained give rise to optical magnetism, i.e., under the effect of an electromagnetic field in the visible range, plasmonic coupling generates a magnetic moment.
Jury
Corine GERARDIN, Directrice de Recherche, Institut Charles Gerhardt, Montpellier / Reporter
Jean-Daniel MARTY, Professeur, SoftMat, Toulouse / Reporter
Anthony SZYMCZYK, ISCR, Université de Rennes / Examinator
Virginie PONSINET, CRPP, Bordeaux / PhD Co-Director
Fabienne GAUFFRE, ISCR, Université de Rennes / PhD Co-Director
Véronique VIE, IPR Rennes / Invited