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Nano-cavity organic laser arrays realized in holographic sculptured polymeric structures

Objective

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.

Call for proposal

FP6-2004-MOBILITY-11
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Funding Scheme

ERG - Marie Curie actions-European Re-integration Grants

Coordinator

DIPARTIMENTO DI FISICA - UNIVERSITA DELLA CALABRIA
Address
Via Pietro Bucci - Cubo 31C
Rende
Italy

Participants (1)

CONSIGLIO NAZIONALE DELLE RICERCHE
Italy
Address
P.le A. Moro 7
Roma