R
Robin Santra
Researcher at University of Hamburg
Publications - 328
Citations - 12268
Robin Santra is an academic researcher from University of Hamburg. The author has contributed to research in topics: Ionization & Laser. The author has an hindex of 53, co-authored 308 publications receiving 10607 citations. Previous affiliations of Robin Santra include Argonne National Laboratory & Heidelberg University.
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Journal ArticleDOI
Real-time observation of valence electron motion
Eleftherios Goulielmakis,Zhi-Heng Loh,Zhi-Heng Loh,Adrian Wirth,Robin Santra,Robin Santra,Nina Rohringer,Vladislav S. Yakovlev,Sergey Zherebtsov,Thomas Pfeifer,Thomas Pfeifer,Thomas Pfeifer,Abdallah M. Azzeer,Matthias F. Kling,Stephen R. Leone,Stephen R. Leone,Ferenc Krausz +16 more
TL;DR: An attosecond pump–probe measurement of the density matrix of valence electrons in atomic krypton ions is reported, able to completely characterize the quantum mechanical electron motion and determine its degree of coherence in the specimen of the ensemble.
Journal ArticleDOI
Femtosecond electronic response of atoms to ultra-intense X-rays
Linda Young,Elliot P. Kanter,Bertold Krässig,Yuelin Li,Anne Marie March,S. T. Pratt,Robin Santra,Robin Santra,Stephen H. Southworth,Nina Rohringer,Louis F. DiMauro,Gilles Doumy,C. Roedig,Nora Berrah,Li Fang,M. Hoener,M. Hoener,Philip H. Bucksbaum,James P. Cryan,Shambhu Ghimire,James M. Glownia,David A. Reis,John D. Bozek,Christoph Bostedt,Marc Messerschmidt +24 more
TL;DR: The nature of the electronic response in a free atom to unprecedented high-intensity, short-wavelength, high-fluence radiation is revealed and successful modelling of X-ray/atom interactions using a straightforward rate equation approach augurs favourably for extension to complex systems.
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Synthesized light transients.
Adrian Wirth,M. Th. Hassan,M. Th. Hassan,Ivanka Grguras,Justin Gagnon,A. Moulet,Tran Trung Luu,Stefan Pabst,Robin Santra,Zeyad A. Alahmed,Abdallah M. Azzeer,Vladislav S. Yakovlev,Vladislav S. Yakovlev,Volodymyr Pervak,Ferenc Krausz,Ferenc Krausz,Eleftherios Goulielmakis +16 more
TL;DR: Fine details of atomic-scale electron motion, such as the instantaneous rate of tunneling, the initial charge distribution of a valence-shell wavepacket, the attosecond dynamic shift of its energy levels, and its few-femtosecond coherent oscillations are revealed.
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Non-Hermitian electronic theory and applications to clusters
Robin Santra,Lorenz S. Cederbaum +1 more
TL;DR: In this paper, an inner-valence ionized cluster, which releases its excess energy by emitting an electron, is characterized by an efficient energy transfer between monomers in the cluster.
Journal ArticleDOI
Roadmap of ultrafast x-ray atomic and molecular physics
Linda Young,Linda Young,Kiyoshi Ueda,Markus Gühr,Markus Gühr,Philip H. Bucksbaum,Philip H. Bucksbaum,Marc Simon,Shaul Mukamel,Nina Rohringer,Kevin C. Prince,Claudio Masciovecchio,Michael Meyer,Artem Rudenko,Daniel Rolles,Christoph Bostedt,Matthias Fuchs,Matthias Fuchs,David A. Reis,Robin Santra,Henry C. Kapteyn,Henry C. Kapteyn,Margaret M. Murnane,Margaret M. Murnane,Heide Ibrahim,François Légaré,Marc J. J. Vrakking,M. Isinger,David Kroon,Mathieu Gisselbrecht,Anne L'Huillier,Hans Jakob Wörner,Stephen R. Leone +32 more
TL;DR: In this paper, the authors present a roadmap for the development of high harmonic generation (HHG) based x-ray free-electron (XFEL) and table-top sources.