Objective
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.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences physical sciences condensed matter physics quasiparticles
- natural sciences chemical sciences inorganic chemistry post-transition metals
- natural sciences physical sciences electromagnetism and electronics semiconductivity
- natural sciences physical sciences optics laser physics
- natural sciences physical sciences theoretical physics particle physics photons
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Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Funding Scheme
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
S3 7RH SHEFFIELD
United Kingdom
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.