Objective
Recent years have seen spectacular advances in the performance and functionality of quantum cascade lasers (QCLs) based on intersubband transitions in III-V semiconductor quantum wells. There remain, however, a large number of relatively unexplored areas i n QCL research which offer the potential to raise performance to still higher levels, as well as shedding light on new areas of semiconductor device physics. For example, rapid non-radiative intersubband scattering by LO-phonon emission places fundamental limits on optical gain in current QCL designs, which could potentially be overcome by reducing dimensionality by application of high magnetic fields or by novel structures exploiting semiconductor quantum dots. Similarly, there is considerable need for a f ull understanding of the processes that lead to optical gain in THz QCLs, where the intersubband separation is below the LO phonon energy. The potential for short wavelength operation would be greatly enhanced by improved knowledge of the electronic parame ters of Sb-based heterostructure systems which could lead to the development of intersubband sources and modulators at telecoms wavelengths. Another exciting prospect arises from exploiting the non-linear optical properties of QCL structures to produce a w ide range of operating wavelengths by second harmonic and sum/difference frequency generation. Related studies of structures incorporating photonic crystal waveguides and/or exploiting surface plasmon effects also promise to lead to key advances in QCL fu nctionality. The proposed research training network brings together 9 European leaders in the fields of quantum cascade lasers and non-linear optics to form a coherent body of expertise which is strongly placed to investigate these fundamental areas which promise to underpin the next generation of QCLs and other intersubband devices. The proposed research programme will provide the focus for over 400 months of Early Stage and Experienced Researcher training.
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
- social sciences economics and business business and management entrepreneurship
- natural sciences physical sciences electromagnetism and electronics semiconductivity
- natural sciences physical sciences optics nonlinear optics
- natural sciences physical sciences optics laser physics
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
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
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
FP6-2002-MOBILITY-1
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Funding Scheme
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.
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
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.