Controlling photophysics and photochemistry via quantum superpositions of electronic states: towards attochemistry
Lead Research Organisation:
Imperial College London
Department Name: Physics
Abstract
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Publications
Barillot T
(2021)
Correlation-Driven Transient Hole Dynamics Resolved in Space and Time in the Isopropanol Molecule
in Physical Review X
Barnard JCT
(2022)
Delivery of stable ultra-thin liquid sheets in vacuum for biochemical spectroscopy.
in Frontiers in molecular biosciences
Danilov D
(2022)
How electronic superpositions drive nuclear motion following the creation of a localized hole in the glycine radical cation
in The Journal of Chemical Physics
Danilov D
(2023)
Coherent Mixing of Singlet and Triplet States in Acrolein and Ketene: A Computational Strategy for Simulating the Electron-Nuclear Dynamics of Intersystem Crossing
in The Journal of Physical Chemistry Letters
Garratt D
(2022)
Direct observation of ultrafast exciton localization in an organic semiconductor with soft X-ray transient absorption spectroscopy.
in Nature communications
Grell G
(2023)
Effect of the shot-to-shot variation on charge migration induced by sub-fs x-ray free-electron laser pulses
in Physical Review Research
Li S
(2022)
Attosecond coherent electron motion in Auger-Meitner decay.
in Science (New York, N.Y.)
Maimaris M
(2022)
Sub-10-fs observation of bound exciton formation in organic optoelectronic devices.
in Nature communications
Olivucci M
(2021)
Unlocking the Double Bond in Protonated Schiff Bases by Coherent Superposition of S1 and S2.
in The journal of physical chemistry letters
| Description | The laboratory work in my laboratory just started (Jan 2021) with the appointment of a PDRA (Jonathan Tobit Barnard) who has begun work on setting up the ultrafast pump pulses (UV/deep UV) in collaboration with two PhD students (Jacob Lee and Timur Avni). In the meantime earlier experimental work using high harmonic generation (HHG) spectroscopy that is part of this project was published in Scientific Reports. This demonstrates how ultrafast molecular nuclear dynamics can be extracted from HHG spectra using a laser intensity self-referencing scheme. Close collaboration with our theory colleagues is leading to new insights and developing further experiments. |
| Exploitation Route | Other academic users in chemical physics and reaction dyna,ics may be able to use this result in there research. |
| Sectors | Chemicals,Energy |
| Description | Enhancements of standard quantum chemistry packages, informed by this research, are in progress. Generation and delivery of few femtosecond tuneable Vis-UV sources anticipated to find wider impact in technology and science. |
| First Year Of Impact | 2021 |
| Sector | Chemicals,Electronics,Energy,Pharmaceuticals and Medical Biotechnology |
| Description | Science Lead UK XFEL Project 2019-2025 |
| Geographic Reach | National |
| Policy Influence Type | Contribution to a national consultation/review |
| URL | https://www.xfel.ac.uk/ |
| Description | Attosecond Electronic Dynamics of the Valence States in Matter Measured with XFELs |
| Amount | £834,035 (GBP) |
| Funding ID | EP/X026094/1 |
| Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
| Sector | Public |
| Country | United Kingdom |
| Start | 04/2023 |
| End | 04/2026 |
| Description | Ultrafast Photochemical Dynamics in Complex Environments |
| Amount | £8,055,186 (GBP) |
| Funding ID | EP/V026690/1 |
| Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
| Sector | Public |
| Country | United Kingdom |
| Start | 09/2021 |
| End | 08/2027 |
| Title | Proving of utility of attosecond X-ray pulses from XFELs |
| Description | We have used the XLEAP (attosecond pulse mode) in both single colour and two-colour format to demonstrate new capability in X-ray non-linear optics, X-ray pump-probe spectroscopy and time resolving photoelectron emission. |
| Type Of Material | Improvements to research infrastructure |
| Year Produced | 2020 |
| Provided To Others? | Yes |
| Impact | So far a number of high profile publications in PRX, PRL and Science |
| Description | Bucksbaum Group - Stanford University |
| Organisation | Stanford University |
| Country | United States |
| Sector | Academic/University |
| PI Contribution | We have provided ideas and expertise to progress research in ultrafast X-ray science by leading and participating in a number of joint beamtimes. |
| Collaborator Contribution | Through this collaboration we have been able to efficiently engage in X-ray free electron laser research at the LCLS facility SLAC through their local resources and manpower. It has enabled around 10 separate beam-times. |
| Impact | A number of research papers including 1 PRL, 2 Nature Communications and more in preparation. |
| Start Year | 2011 |
| Description | SLAC Photon Sciences |
| Organisation | Stanford University |
| Department | SLAC National Accelerator Laboratory |
| Country | United States |
| Sector | Public |
| PI Contribution | We are a member of an international collaboration, the "Attosecond Campaign" coordinated by SLAC (Dr Agostino Marinelli and Dr James Cryan SLAC leads) aimed at developing attosecond measurements of electron dynamics using newly proven X-ray FEL capabilities. |
| Collaborator Contribution | They provide the support of X-ray FEL beamtime and run the experimental endstation |
| Impact | A papers published in PRL, Nature Photonics, Science |
| Start Year | 2020 |