Measuring ultrafast chemical dynamics in the liquid phase
Lead Research Organisation:
Imperial College London
Department Name: Physics
Abstract
The project will harness recently developed high harmonic based soft-x-ray lights sources to probe, using x-ray absorption spectroscopy, photo-triggered chemical dynamics in the liquid phase with a temporal resolution down to a few fs. The research will further develop a novel liquid sheet jet technology (producing ~1.5 micron thick flows in free space or vacuum) to optimise their performance in vacuum. A target of these studies will be iron III bipyridyl complexes due to their importance as models for metallic complex photo-reactions and potential importance to understanding photocatalysis. Probing on the N K-edge will reveal the initial charge transfer from the iron centre following photoexcitation.
People |
ORCID iD |
| Jonathan Marangos (Primary Supervisor) | |
| Jonathan Barnard (Student) |
Studentship Projects
| Project Reference | Relationship | Related To | Start | End | Student Name |
|---|---|---|---|---|---|
| EP/N509486/1 | 01/10/2016 | 31/03/2022 | |||
| 1812335 | Studentship | EP/N509486/1 | 01/10/2016 | 31/12/2020 | Jonathan Barnard |
| Description | LCLS |
| Organisation | Imperial College London |
| Department | Imperial College Business School |
| Country | United Kingdom |
| Sector | Academic/University |
| PI Contribution | I have participated in three beam times at SLAC, one in partnership with the Van Thor group in Imperial and two with the Cryan group at SLAC itself. I performed data analysis at all three. I am currently still analysing the data from one of the runs. |
| Collaborator Contribution | They were the ones who were running the beam times I was helping with |
| Impact | The data from these runs has yet to be fully analysed, although some of it looks promising. One paper has been published (Attosecond transient absorption spooktroscopy: a ghost imaging approach to ultrafast absorption spectroscopy, T. Driver et al, PCCP) and two others are in preparation |
| Start Year | 2017 |
| Description | LCLS |
| Organisation | Stanford University |
| Department | SLAC National Accelerator Laboratory |
| Country | United States |
| Sector | Public |
| PI Contribution | I have participated in three beam times at SLAC, one in partnership with the Van Thor group in Imperial and two with the Cryan group at SLAC itself. I performed data analysis at all three. I am currently still analysing the data from one of the runs. |
| Collaborator Contribution | They were the ones who were running the beam times I was helping with |
| Impact | The data from these runs has yet to be fully analysed, although some of it looks promising. One paper has been published (Attosecond transient absorption spooktroscopy: a ghost imaging approach to ultrafast absorption spectroscopy, T. Driver et al, PCCP) and two others are in preparation |
| Start Year | 2017 |
| Description | Van Thor group |
| Organisation | Imperial College London |
| Country | United Kingdom |
| Sector | Academic/University |
| PI Contribution | Aided the Van Thor group with laser work and data collection at their beamtime at SACLA |
| Collaborator Contribution | A coherent control experiment to try to manipulate the rotation of a protein with two laser pulses, before measuring the protein with diffraction from the X-rays |
| Impact | Data is still being analysed, but I believe a paper is in preparation |
| Start Year | 2019 |