Objetivo The present project aims at a multi-disciplinary approach of the recently discovered optical polarization anisotropy properties associated with the reduction of symmetry at semiconductor interfaces. It brings together theoreticians belonging to the k.p (or envelope function) theory and ab-initio calculation communities, experimentalists having established expertise in different spectroscopic techniques, and material physicists growing a variety of quantum well and quantum dot heterostructures. The material of interest are heterostructures based on III-V and II-VI semiconductors and presenting some inversion asymmetry with respect to the growth axis, with special attention to the systems where the host materials have unlike cations and anions, or "no-common atom" systems. In the latter case, interface asymmetry is primarily due to the existence of specific interface bonds that do not exist in the host materials. Conversely, in Common-Anion quantum wells, the asymmetry can come from the compositional profile or from the application of an external electric field.The project aims at:i) fundamental understanding of the physical parameters governing the mixing of light and heavy valence bands at interfaces;ii) sorting out intrinsic and extrinsic contributions to optical anisotropy in asymmetric quantum wells or in self-assembled quantum dots;iii) using polarization resolved optical spectroscopy as a new tool for the characterization of semiconductor interfaces;iv) evaluating the potential of these anisotropy properties for opto-electronic device applications and the potential of NCA quantum wells as materials for non-linear optics, and v) establishing an homogeneous theoretical formalism taking into account the three contributions (Bulk, Structure and Interfaces) to inversion asymmetry in quantum well structures.The consortium consists of 7 knowledgeable teams (three from NIS and 4 from INTAS member states) having established skill in both theoretical and experimental fields. In particular, the scientific equipment necessary to the experimental part of the project, and the samples, are available within the consortium or through established collaborations. It is expected that strong scientific interaction will develop between the partners, through visits, exchange of information, and collaboration on specific issues.Given the importance and actuality of the interface symmetry reduction effect, it is anticipated that the project will give rise to the publication of a number of original journal and conference papers and will contribute to significant progress in semiconductor science. Programa(s) IC-INTAS - International Association for the promotion of cooperation with scientists from the independent states of the former Soviet Union (INTAS), 1993- Tema(s) 1B - Condensed Matter, Optics and Plasma Physics OPEN - OPEN Call Convocatoria de propuestas Data not available Régimen de financiación Data not available Coordinador Ecole Normale Supérieure de Paris Aportación de la UE Sin datos Dirección 24 rue Lhomond 75005 Paris Francia Ver en el mapa Coste total Sin datos Participantes (6) Ordenar alfabéticamente Ordenar por aportación de la UE Ampliar todo Contraer todo National Academy of Sciences of Ukraine Ucrania Aportación de la UE Sin datos Dirección Prospect Nauki 46 252022 Kiev Ver en el mapa Coste total Sin datos Physikalisches Institut Alemania Aportación de la UE Sin datos Dirección Am Hubland 97074 Würzburg Ver en el mapa Coste total Sin datos Russian Academy of Sciences Rusia Aportación de la UE Sin datos Dirección Politekhnicheskaya 26 194021 St. Petersburg Ver en el mapa Coste total Sin datos Russian Academy of Sciences Rusia Aportación de la UE Sin datos Dirección Institutskii Prospekt 15 142432 Chernogolovka, Moscow district Ver en el mapa Coste total Sin datos Universita di Modena Italia Aportación de la UE Sin datos Dirección Via Campi 213/A 41100 Modena Ver en el mapa Coste total Sin datos Universität Regensburg Alemania Aportación de la UE Sin datos Dirección Universitätsstr. 31 93053 Regensburg Ver en el mapa Coste total Sin datos
