Objective The aim of this project is the realisation of efficient mid-infrared and THz optoelectronic emitters. This work is motivated by the fact that the spontaneous emission in this frequency range is characterized by an extremely long lifetime when compared to non-radiative processes, giving rise to devices with very low quantum efficiency. To this end we want to develop hybrid light-matter systems, already well known in quantum optics, within optoelectronics devices, that will be driven by electrical injection. With this project we want to extend the field of optoelectronics by introducing some of the concepts of quantum optic, particularly the light-matter strong coupling, into semiconductor devices. More precisely this project aims at the implementation of novel optoelectronic emitters operating in the strong coupling regime between an intersubband excitation of a two-dimensional electron gas and a microcavity photonic mode. The quasiparticles issued from this coupling are called intersubband polaritons. The major difficulties and challenges of this project, do not lay in the observation of these quantum effects, but in their exploitation for a specific function, in particular an efficient electrical to optical conversion. To obtain efficient quantum emitters in the THz frequency range we will follow two different approaches: - In the first case we will try to exploit the additional characteristic time of the system introduced by the light-matter interaction in the strong (or ultra-strong) coupling regime. - The second approach will exploit the fact that, under certain conditions, intersubband polaritons have a bosonic character; as a consequence they can undergo stimulated scattering, giving rise to polaritons lasers as it has been shown for excitonic polaritons. Fields of science natural sciencesphysical scienceselectromagnetism and electronicsoptoelectronicsnatural sciencesphysical scienceselectromagnetism and electronicssemiconductivitynatural sciencesphysical sciencesquantum physicsquantum opticsnatural sciencesphysical sciencesopticslaser physics Programme(s) FP7-IDEAS-ERC - Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Topic(s) ERC-AG-PE3 - ERC Advanced Grant - Condensed matter physics Call for proposal ERC-2009-AdG See other projects for this call Funding Scheme ERC-AG - ERC Advanced Grant Host institution Université Paris Diderot-Paris 7 EU contribution € 1 761 000,00 Address Rue Thomas Mann F-75205 / 13 Paris France See on map Activity type Higher or Secondary Education Establishments Administrative Contact Muriel Maurice (Ms.) Principal investigator Carlo Sirtori (Prof.) Links Contact the organisation Opens in new window Website Opens in new window Total cost No data Beneficiaries (1) Sort alphabetically Sort by EU Contribution Expand all Collapse all Université Paris Diderot-Paris 7 France EU contribution € 1 761 000,00 Address Rue Thomas Mann F-75205 / 13 Paris See on map Activity type Higher or Secondary Education Establishments Administrative Contact Muriel Maurice (Ms.) Principal investigator Carlo Sirtori (Prof.) Links Contact the organisation Opens in new window Website Opens in new window Total cost No data
