| EPSRC Reference: |
GR/R14309/01 |
| Title: |
Exploring Coulomb-Correlations In Semiconductors Using Ultrafast Nonlinear Optics and Many-Body Theory |
| Principal Investigator: |
Galbraith, Professor I |
| Other Investigators: |
|
| Researcher Co-Investigators: |
|
| Project Partners: |
|
| Department: |
Sch of Engineering and Physical Science |
| Organisation: |
Heriot-Watt University |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 May 2001 |
Ends: |
31 January 2005 |
Value (£): |
361,196
|
| EPSRC Research Topic Classifications: |
|
| EPSRC Industrial Sector Classifications: |
|
| Related Grants: |
|
| Panel History: |
|
|
Summary on Grant Application Form |
|
This proposal seeks funding to study the spectrum and dynamics of correlated excitations and complexes formed within the electron-hole gas in semiconductors. The complexes formed include excitons and biexcitons, and mechanisms influencing the formation and stability of such excitations include direct Coulomb interactions and exchange interactions. The presence of these excitations induces changes in the optical spectrum of the semiconductor so the composition and dynamics of the correlated gas can be investigated efficiently using ultrafast nonlinear optical techniques.Recent advances in experimental techniques have already provided new, detailed information on Coulomb-correlations in semiconductors. However, the current theoretical understanding of such correlations is very limited. Using in-house data already available, and the further information provided by the newer studies outlined above, this programme also seeks to provide a consistent theoretical framework for the understanding of effects such as exciton and biexciton energy shifts, excitonic phase-space filling and thermalisation.
|
|
Key Findings |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
|
Potential use in non-academic contexts |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
|
Impacts |
|
| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
|
| Date Materialised |
|
|
|
|
Sectors submitted by the Researcher |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
| Project URL: |
|
| Further Information: |
|
| Organisation Website: |
http://www.hw.ac.uk |