Kseniia Lezhennikova soutiendra sa thèse intitulée « Manipulation of Electromagnetic Near-field Interactions » le 12 Juillet 2024 à 10h00 en salle Pierre Cotton de notre laboratoire, Campus St Jérôme à Marseille. La présentation se fera en angais.
Composition du Jury :
– Julien de Rosny, Institut Langevin – Rapporteur
– Matthieu Davy, University of Rennes – Rapporteur
– Anne Sentenac, Aix Marseille University – Examinatrice
– Stanislav Glybovski, ITMO University – Examinateur
– Boris Kuhlmey, University of Sydney – Examinateur
– Frédérique Gadot, Université Paris Nanterre – Président du Jury
– Stefan Enoch, Aix Marseille University – Directeur de thèse
– Redha Abdeddaim, Aix Marseille University – Co-Directeur de thèse
Résumé (EN) : This thesis explores near-field interactions and control from optics to microwave and Terahertz (THz) ranges. It investigates how emitter emission and energy transfer depend on the surrounding environment. To do so we use an analogy between quantum emitters in optics like atoms and quantum dots and antennas in the microwave range, that can provide better spatial resolution and orientation control. Additionally, we examine the influence of metasurfaces and photonic crystals on near-field manipulation, showing their ability to control energy transfer. We demonstrate existing methods of the near field scanning on the example of hyperbolic metasurface. Then, we present a novel experimental setup in the THz range to explore photonic crystal near fields, revealing band gaps and self-colimation effects. This thesis encompasses theoretical foundations and experimental demonstrations, spanning from antenna-based energy transfer to innovative near-field measurements using photonic crystals. We conclude by outlining future research directions and the potential for manipulating the local photonic environment.
