Cristaux Photoniques à Gradient et Dispositifs

par Yifan Sun

Projet de thèse en Electronique et optoélectronique, nano- et microtechnologies

Sous la direction de Eric Akmansoy et de Moustafa El Kurdi.

Thèses en préparation à Paris Saclay , dans le cadre de École doctorale Electrical, optical, bio-physics and engineering (Orsay, Essonne) , en partenariat avec Centre de Nanosciences et de Nanotechnologies (laboratoire) , Photonique (equipe de recherche) et de Université Paris-Sud (établissement de préparation de la thèse) depuis le 14-10-2016 .

  • Titre traduit

    Graded Photonic Crystals devices


  • Résumé

    Photonic crystals are composed of periodic dielectric microstructures or nanostructures that affect the propagation of electromagnetic wave. Recently, a new type of photonic crystal which is named graded photonic crystals (GPC) was proposed. GPC are obtained by appropriate gradual modification of photonic crystals parameters, such as the filling factor, the optical index, or the lattice period. The modification of such photonic crystals parameters results in consequential index variation, it opens a new way to control electromagnetic wave propagation in photonic crystals, and many applications are inspired by this notion, for example, bending the incident light, the mirage effects, polarization beam splitter, guiding acoustic waves. And another important application of graded photonic crystals is about focusing. Our aim is to fabricate efficient photonic devices for integrated optics. These devices are well adapted for optical pumping of micro-cavity, organic substances, biophotonics, etc. We wish to developp such devices up to telecom domain (1.55µm) and visible domain (600nm).