TY  - CONF
AU  - Küpper, Jochen
TI  - Strong-field-ionization and rescatteringin the molecular frame
PB  - online only
M1  - PUBDB-2020-04706
PY  - 2020
AB  - Strong-field-ionization and rescatteringin the molecular frameJochen Küpper1Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Notkestraße 85,22607 Hamburg, GermanyDepartment of Physics, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, GermanyDepartment of Chemistry, Universität Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, GermanyCenter for Ultrafast Imaging, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germanyjochen.kuepper@cfel.deThe interaction of strong laser fields with matter intrinsically provides powerful tools to imagetransient dynamics with an extremely high spatiotemporal resolution. We studied the strong-fieldionization of laser-aligned OCS molecules [1] and show a full real-time picture of the photoelectrondynamics in the combined action of the laser field and the molecular interaction [2]. We demonstratethat the molecule has a dramatic impact on the overall strong-field dynamics: it sets the clock for theemission of electrons with a given rescattering kinetic energy. This result benchmarks the seminalstatements of molecular-frame strong-field physics and has strong impact on the interpretation ofatomic-resolution self-diffraction experiments [3,4]. Furthermore, the resulting encoding of thetime-energy relation in molecular-frame photoelectron momentum distributions shows the wayof probing the molecular potential in real-time and accessing a deeper understanding of electrontransport during strong-field interactions.Furthermore, utilizing our strong control over complex molecules [5] and experimentallyresolving intensity-averaging effects [6], we acquired photoelectron momentum distributions inthe molecular frame for a well-defined, narrow range of incident intensities for the prototypicalbiomolecule indole (C8H7N) and its water cluster (C8H7N–H2O). We disentangled these photo-electron momentum images with a novel, highly efficient semiclassical simulation setup based onthe adiabatic tunneling theory and employing a quantum-chemically exact description of the cationduring the subsequent continuum dynamics [7].Strong-field-ionization and rescatteringin the molecular frameJochen Küpper1Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Notkestraße 85,22607 Hamburg, GermanyDepartment of Physics, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, GermanyDepartment of Chemistry, Universität Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, GermanyCenter for Ultrafast Imaging, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germanyjochen.kuepper@cfel.deThe interaction of strong laser fields with matter intrinsically provides powerful tools to imagetransient dynamics with an extremely high spatiotemporal resolution. We studied the strong-fieldionization of laser-aligned OCS molecules [1] and show a full real-time picture of the photoelectrondynamics in the combined action of the laser field and the molecular interaction [2]. We demonstratethat the molecule has a dramatic impact on the overall strong-field dynamics: it sets the clock for theemission of electrons with a given rescattering kinetic energy. This result benchmarks the seminalstatements of molecular-frame strong-field physics and has strong impact on the interpretation ofatomic-resolution self-diffraction experiments [3,4]. Furthermore, the resulting encoding of thetime-energy relation in molecular-frame photoelectron momentum distributions shows the wayof probing the molecular potential in real-time and accessing a deeper understanding of electrontransport during strong-field interactions.Furthermore, utilizing our strong control over complex molecules [5] and experimentallyresolving intensity-averaging effects [6], we acquired photoelectron momentum distributions inthe molecular frame for a well-defined, narrow range of incident intensities for the prototypicalbiomolecule indole (C8H7N) and its water cluster (C8H7N–H2O). We disentangled these photo-electron momentum images with a novel, highly efficient semiclassical simulation setup based onthe adiabatic tunneling theory and employing a quantum-chemically exact description of the cationduring the subsequent continuum dynamics [7].[1]E. T. Karamatskos, S. Raabe, T. Mullins, A. Trabattoni, P. Stammer, G. Goldsztejn, R. R. Johansen,K. Długoł ̨ecki, H. Stapelfeldt, M. J. J. Vrakking, S. Trippel, A. Rouzée, and J. Küpper, Molecular movieof ultrafast coherent rotational dynamics of OCS, Nat. Commun.10, 3364 (2019), arXiv:1807.01034[physics].[2]A. Trabattoni, J. Wiese, U. De Giovannini, J.-F. Olivieri, T. Mullins, J. Onvlee, S.-K. Son, B. Frusteri,A. Rubio, S. Trippel, and J. Küpper, Setting the photoelectron clock through molecular alignment, Nat.Commun.11, 2546 (2020), arXiv:1802.06622 [physics].[3]M. Spanner, O. Smirnova, P. B. Corkum, and M. Y. Ivanov, Reading diffraction images in strong fieldionization of diatomic molecules, J. Phys. B37, L243–L250 (2004).[4]E. T. Karamatskos, G. Goldsztejn, S. Raabe, P. Stammer, T. Mullins, A. Trabattoni, R. R. Johansen,H. Stapelfeldt, S. Trippel, M. J. J. Vrakking, J. Küpper, and A. Rouzée, Atomic-resolution imaging of car-bonyl sulfide by laser-induced electron diffraction, J. Chem. Phys.150, 244301 (2019), arXiv:1905.03541[physics].[5]Y.-P. Chang, D. A. Horke, S. Trippel, and J. Küpper, Spatially-controlled complex molecules and theirapplications, Int. Rev. Phys. Chem.34, 557–590 (2015), arXiv:1505.05632 [physics].[6]J. Wiese, J.-F. Olivieri, A. Trabattoni, S. Trippel, and J. Küpper, Strong-field photoelectron momentumimaging of OCS at finely resolved incident intensities, New J. Phys.21, 083011 (2019), arXiv:1904.07519[physics].[7]J. Wiese, J. Onvlee, S. Trippel, and J. Küpper, Strong-field ionization of complex molecules (2020),under review, arXiv:2003.02116 [physics].
T2  - Cost Meeting Attosecond Chemistry
CY  - 9 Sep 2020 - 11 Sep 2020, Cluj-Napoca (online) (Romania)
Y2  - 9 Sep 2020 - 11 Sep 2020
M2  - Cluj-Napoca (online), Romania
LB  - PUB:(DE-HGF)6
UR  - https://bib-pubdb1.desy.de/record/452471
ER  -