ORCID Profile
0000-0003-3234-7298
Current Organisations
Universität Hamburg
,
Deutsche Elektronen-Synchrotron DESY
,
Consiglio Nazionale delle Ricerche
,
Politecnico di Milano
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
Publisher: IEEE
Date: 10-2015
Publisher: American Physical Society (APS)
Date: 30-12-2016
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7CP02803B
Abstract: Ultrafast dynamics and fragmentation of thymidine and thymine after ionization by attosecond extreme ultraviolet radiation studied in the time-domain.
Publisher: MDPI AG
Date: 16-06-2017
DOI: 10.3390/APP7060621
Publisher: OSA
Date: 2014
Publisher: American Association for the Advancement of Science (AAAS)
Date: 17-10-2014
Abstract: In the past decade, attosecond technology has opened up the investigation of ultrafast electronic processes in atoms, simple molecules, and solids. Here, we report the application of isolated attosecond pulses to prompt ionization of the amino acid phenylalanine and the subsequent detection of ultrafast dynamics on a sub–4.5-femtosecond temporal scale, which is shorter than the vibrational response of the molecule. The ability to initiate and observe such electronic dynamics in polyatomic molecules represents a crucial step forward in attosecond science, which is progressively moving toward the investigation of more and more complex systems.
Publisher: IOP Publishing
Date: 07-09-2015
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 09-2015
Publisher: OSA
Date: 2016
Publisher: American Physical Society (APS)
Date: 23-03-2023
Publisher: Springer International Publishing
Date: 2015
Publisher: American Chemical Society (ACS)
Date: 25-07-2018
DOI: 10.1021/ACS.JPCLETT.8B01786
Abstract: Attosecond pump-probe experiments performed in small molecules have allowed tracking charge dynamics in the natural time scale of electron motion. That this is also possible in biologically relevant molecules is still a matter of debate, because the large number of available nuclear degrees of freedom might destroy the coherent charge dynamics induced by the attosecond pulse. Here we investigate extreme ultraviolet-induced charge dynamics in the amino acid tryptophan. We find that, although nuclear motion and nonadiabatic effects introduce some decoherence in the moving electron wave packet, these do not significantly modify the coherence induced by the attosecond pulse during the early stages of the dynamics, at least for molecules in their equilibrium geometry. Our conclusions are based on elaborate theoretical calculations and the experimental observation of sub-4 fs dynamics, which can only be reasonably assigned to electronic motion. Hence, attosecond pump-probe spectroscopy appears as a promising approach to induce and image charge dynamics in complex molecules.
Publisher: IOP Publishing
Date: 14-10-2019
Publisher: American Physical Society (APS)
Date: 19-01-2017
No related grants have been discovered for Francesca Calegari.