Obiettivo We aim to break new ground in the science and technology of semiconductor light emitters. We focus on Gallium Nitride (GaN) based semiconductor microcavities (MCs) in which excitons and photons are strongly coupled to form exciton-polariton coupled modes, to fabricate coherent light emitters and parametric amplifiers (OPA), with major advantages over present technologies. The particular goals are: 1. Design, fabricate and test the first polariton laser - the demonstration of this new coherent light source would represent a major breakthrough with implications for both pure and applied science. We target both optically and electrically pumped devices at room temperature. 2. In very similar structures demonstrate ultrafast optical parametric amplifier (OPA) operation in compact micron size devices. The high exciton binding energies and large oscillator strengths of GaN provide the materials properties to achieve our goals. At the same time GaN MC technology is in its infancy and poses a number of challenges we are well placed to overcome. Although GaN devices are efficient light emitters, they have high thresholds for inversion due to the high carrier densities of states. MCs in the strong coupling regime overcome this intrinsic limitation, with up to 4 orders of magnitude lower density of states. Stimulation is thus much easier to attain, with the promise of low thresholds for coherent emission, an order of magnitude lower than present GaN lasers. Our goals require advanced crystal growth, device fabrication, spectroscopy, theory and device modelling, beyond the capabilities of any one laboratory. We have assembled a collaboration from leading laboratories around Europe, with the necessary expertise. Success will enable EU scientists, many of whom have pioneered the field, to achieve a real lead on an international scale. Our findings will also have wide applicability to other GaN-devices e.g. resonant cavity LEDs and VCSELs. Campo scientifico natural scienceschemical sciencesinorganic chemistrypost-transition metalsnatural sciencesphysical scienceselectromagnetism and electronicssemiconductivitynatural sciencesphysical sciencesopticslaser physicsnatural sciencesphysical sciencestheoretical physicsparticle physicsphotonsnatural sciencesphysical sciencesopticsspectroscopy Programma(i) FP6-IST - Information Society Technologies: thematic priority under the specific programme "Integrating and strengthening the European research area" (2002-2006). Argomento(i) IST-2002-2.3.4.1 - FET - Open Invito a presentare proposte Data not available Meccanismo di finanziamento STREP - Specific Targeted Research Project Coordinatore THE UNIVERSITY OF SHEFFIELD Contributo UE Nessun dato Indirizzo HOUNSFIELD ROAD S3 7RH SHEFFIELD Regno Unito Mostra sulla mappa Costo totale Nessun dato Partecipanti (7) Classifica in ordine alfabetico Classifica per Contributo UE Espandi tutto Riduci tutto CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS) Francia Contributo UE Nessun dato Indirizzo Rue Bernard Gregory, Sophia Antipolis 06560 VALBONNE Mostra sulla mappa Costo totale Nessun dato ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE Svizzera Contributo UE Nessun dato Indirizzo Station 3 1015 LAUSANNE Mostra sulla mappa Costo totale Nessun dato SHARP LABORATORIES OF EUROPE LTD Regno Unito Contributo UE Nessun dato Indirizzo EDMUND HALLEY ROAD OXFORD SCIENCE PARK OXFORD Mostra sulla mappa Collegamenti Sito web Opens in new window Costo totale Nessun dato THE UNIVERSITY OF SOUTHAMPTON Regno Unito Contributo UE Nessun dato Indirizzo Highfield SO17 1BJ SOUTHAMPTON Mostra sulla mappa Costo totale Nessun dato UNIVERSITA DEGLI STUDI DI ROMA "TOR VERGATA" Italia Contributo UE Nessun dato Indirizzo Via del Politecnico 1 00133 ROME Mostra sulla mappa Costo totale Nessun dato UNIVERSITY OF STRATHCLYDE Regno Unito Contributo UE Nessun dato Indirizzo 107 Rottenrow G4 ONG GLASGOW Mostra sulla mappa Costo totale Nessun dato Université Blaise Pascal CLERMONT-FERRAND II Francia Contributo UE Nessun dato Indirizzo 24 avenue des Landais 63177 AUBIÈRE Mostra sulla mappa Costo totale Nessun dato
