| EPSRC Reference: |
EP/N031326/1 |
| Title: |
Semi-classical models for ultra-fast multi-electron phenomena in intense electro-magnetic laser fields |
| Principal Investigator: |
Emmanouilidou, Professor A |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Physics and Astronomy |
| Organisation: |
UCL |
| Scheme: |
Standard Research |
| Starts: |
01 October 2016 |
Ends: |
20 April 2021 |
Value (£): |
336,665
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| EPSRC Research Topic Classifications: |
| Lasers & Optics |
Light-Matter Interactions |
| Quantum Optics & Information |
Scattering & Spectroscopy |
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| EPSRC Industrial Sector Classifications: |
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| Panel History: |
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Summary on Grant Application Form |
Attoscience is one of the great scientific challenges of the 21st century. Attoseconds and sub-femtoseconds are the natural time scale for multi-electron effects during the ionization and break-up of atoms and molecules. The proposed research will explore the physical mechanisms underlying correlated
multi-electron dynamics and devising schemes to probe/control these mechanisms. Correlated electron dynamics is of fundamental interest to
attosecond technology. For instance, an electron extracted from a molecule carries information determining the electronic molecular orbital and
position of the nuclei, thus paving the way for molecular imaging. Moreover, the proposed work will explore magnetic field and quantum interference
effects on attosecond processes. These effects are crucial for fully understanding many phenomena, such as the generation of attosecond pulses and
holography with photoelectrons.
The overall aim of the proposed work is to explore attosecond phenomena, magnetic field and interference effects during multi-electron ionization in atoms and multi-center molecules triggered by ultra-short and ultra-strong near-infrared and mid-infrared laser pulses. The rapid experimental advances place these phenomena at the forefront of Attoscience. New theoretical tools are urgently needed to address the challenges facing this field. In response to this quest, I offer novel, efficient and sophisticated semi-classical methods that are much faster than quantum-mechanical ones and that allow for significant insights into the physical mechanisms. These semi-classical techniques are appropriate for ionization processes through long-range Coulomb forces. Using these techniques, I will address some of the most fundamental problems facing Attoscience. My objectives are:
1) Account for non-dipole effects to explore photon momentum sharing between electrons and ions in two-electron atoms and diatomic molecules driven by near-IR and mid-IR laser pulses.
3) Account for non-dipole and interference effects to explore "frustrated" ionization and non-sequential double ionization in two-electron atoms and diatomic molecules
driven by mid-IR laser pulses.
4) Explore non-sequential and "frustrated" ionization in two- and three-electron three-center molecules driven by near-IR laser pulses.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
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