Objectif The aim of the project is the experimental realization and characterization of ultralow threshold tuneable organic lasing structures. It has been demonstrated in the past, that under particular conditions, a cholesteric liquid crystal (CLC) material doped with a dye component (or a mixture of them) can constitute a lasing system. It has been also shown that the lasing threshold of this system inversely scales with the volume occupied by the active medium. Hence, the confinement of the dye-doped cholesteric material within nanosized cavities can result in an ultra-low or even zero-threshold lasing system.These cavities can be sculptured in a suitable photosensitive polymeric substrate by means of a highly precise and very short-pitched periodic light pattern obtained by holographic techniques and afterwards filled with the CLC-dye mixture. The cited techniques are very flexible and ensure a huge variability in the choice of the experimental parameters. This represents a research key point to reach a full optimization of the system and hence the success of the project. Champ scientifique sciences naturellessciences physiquesoptiquephysique des lasersingénierie et technologieingénierie des materiauxcristal liquide Mots‑clés Holography polymeric nanocavities tunable lasers Programme(s) FP6-MOBILITY - Human resources and Mobility in the specific programme for research, technological development and demonstration "Structuring the European Research Area" under the Sixth Framework Programme 2002-2006 Thème(s) MOBILITY-4.1 - Marie Curie European Reintegration Grants (ERG) Appel à propositions FP6-2004-MOBILITY-11 Voir d’autres projets de cet appel Régime de financement ERG - Marie Curie actions-European Re-integration Grants Coordinateur DIPARTIMENTO DI FISICA - UNIVERSITA DELLA CALABRIA Adresse Via pietro bucci - cubo 31c Rende Italie Voir sur la carte Liens Site web Opens in new window Contribution de l’UE Aucune donnée Participants (1) Trier par ordre alphabétique Trier par contribution de l’UE Tout développer Tout réduire CONSIGLIO NAZIONALE DELLE RICERCHE Italie Contribution de l’UE € 0,00 Adresse P.le a. moro 7 Roma Voir sur la carte Liens Site web Opens in new window Autres sources de financement Aucune donnée
