Skip to main content
Aller à la page d’accueil de la Commission européenne (s’ouvre dans une nouvelle fenêtre)
français fr
CORDIS - Résultats de la recherche de l’UE
CORDIS
Contenu archivé le 2024-04-30

New methods for efficient second harmonic generation in waveguides - use of pulsed laser treatments to control the ferroelectric domain structure

Objectif



This project has the goals of fabricating waveguides in LiNbO3 and LiTaO3 with a controlled ferroelectric domain structure in two different ways, with the final objective of efficient Second Harmonic Generation (SHG). In the first part, the goal is to achieve periodic reversal of ferroelectric domains by using pulsed thermal excitation with laser pulses. With this novel laser technique it is expected to directly obtain the periodic pattern; this will be used for Quasi-Phase-Matching SHG. In the second part, by Laser Ablation Technique I will deposit and diffuse thin films that will create large and gradual changes in the Curie Temperature with the goal of obtaining, inside the waveguide, an alternative domain structure in the transverse direction to the surface (by alternative poling at the different temperatures). This will improve the overlap between either guided mode or to Cerenkov mode.

Champ scientifique (EuroSciVoc)

Programme(s)

Thème(s)

Appel à propositions

Données non disponibles

Régime de financement

RGI - Research grants (individual fellowships)

Coordinateur

UNIVERSITY OF SUSSEX
Contribution de l’UE
Aucune donnée
Adresse
University of Sussex Falmer
BN1 9QH BRIGHTON / FALMER
Royaume-Uni
Coût total
Aucune donnée

Participants (1)