29 citations · 136 across the 14 of their papers we have counts for
16 papers
Real-time exciton dynamics in two-dimensional materials under ultrashort laser pulses
Dmitry Tumakov, Daria Popova-Gorelova
The optical response of two-dimensional materials is often significantly impacted by excitonic effects due to the reduced screening of attractive Coulomb interactions in low-dimens…
An exciting approach to theoretical spectroscopy
Martí Raya-Moreno, Alexander Buccheri, Noah Alexy Dasch +27
Theoretical spectroscopy, and more generally, electronic-structure theory, are powerful concepts for describing the complex many-body interactions in materials. They comprise a var…
Attosecond momentum-resolved resonant inelastic x-ray scattering for imaging coupled electron-hole dynamics
Maksim Radionov, Daria Popova-Gorelova
Improving our understanding of electron dynamics is essential for advancing energy transfer, optoelectronics, light harvesting systems and quantum computing. Recent developments in…
Laser-dressed partial density of states
Tatiana Bezriadina, Daria Popova-Gorelova
The manipulation of material properties by laser light holds great promise for the development of future technologies. However, the full picture of the electronic response to laser…
Revealing fingerprints of valence excitons in x-ray absorption spectra with the Bethe-Salpeter equation
Nasrin Farahani, Daria Popova-Gorelova
The Bethe-Salpeter equation (BSE) is a powerful theoretical approach that is capable to accurately treat electron-hole interactions in materials in an excited state. We developed a…
Femtosecond concerted rotation of molecules on a 2D material interface
Kiana Baumgärtner, Misa Nozaki, Marvin Reuner +20
Interfaces between molecules and 2D materials exhibit energy-driven functionalities, wherein charge transfer directs molecular motion. Unlike equilibrium systems, where molecular a…
Attosecond imaging of photo-induced dynamics in molecules using time-resolved photoelectron momentum microscopy
Marvin Reuner, Daria Popova-Gorelova
We explore the novel capabilities offered by attosecond extreme ultraviolet and x-ray pulses that can be now generated by free-electron lasers and high-harmonics generation sources…
Heisenberg representation of nonthermal ultrafast laser excitation of magnetic precessions
Daria Popova-Gorelova, Andreas Bringer, Stefan Blügel
We derive the Heisenberg representation of the ultrafast inverse Faraday effect that provides the time evolution of magnetic vectors of a magnetic system during its interaction wit…
Atomic-scale imaging of laser-driven electron dynamics in solids using subcycle-resolved x-ray-optical wave mixing
Daria Popova-Gorelova, Robin Santra
We investigate laser-driven electron dynamics in solids on the atomic scale and in real space within Floquet formalism, and develop a method based on subcycle-resolved x-ray-optica…
Microscopic electron dynamics in nonlinear optical response of solids
Daria Popova-Gorelova, Vladislav Guskov, Robin Santra
We investigate the microscopic properties of the nonlinear optical response of crystalline solids within Floquet theory, and demonstrate that optically-induced microscopic charge d…
Ultrafast molecular orbital tomography of a pentacene thin film using time-resolved momentum microscopy at a free-electron laser
K. Baumgärtner, M. Reuner, C. Metzger +19
We use time-resolved momentum microscopy at a free-electron laser (FEL) and extend orbital tomography into the time domain to image the electronic wave functions of excited molecul…
Theory of x-ray scattering from laser-driven electronic systems
Daria Popova-Gorelova, David A. Reis, Robin Santra
We describe, within the framework of quantum electrodynamics, an interaction between a non-resonant hard x-ray pulse and an electronic system in the presence of a temporally period…
Imaging Electron Dynamics with Ultrashort Light Pulses: A Theory Perspective
Daria Popova-Gorelova
A wide range of ultrafast phenomena in various atomic, molecular and condense matter systems is governed by electron dynamics. Therefore, the ability to image electronic motion in…
Imaging electron dynamics with time- and angle-resolved photoelectron spectroscopy
Daria Popova-Gorelova, Jochen Küpper, Robin Santra
We theoretically study how time- and angle-resolved photoemission spectroscopy can be applied for imaging coherent electron dynamics in molecules. We consider a process in which a…
Imaging interatomic electron current in crystals with ultrafast resonant x-ray scattering
Daria Popova-Gorelova, Robin Santra
We demonstrate how the technique of ultrafast resonant x-ray scattering can be applied to imaging dynamics of electronic wave packets in crystals. We study scattering patterns from…
Imaging instantaneous electron flow with ultrafast resonant x-ray scattering
Daria Popova-Gorelova, Robin Santra
We propose a novel way to image dynamical properties of nonstationary electron systems using ultrafast resonant x-ray scattering. Employing a rigorous theoretical analysis within t…