49 citations · 256 across the 17 of their papers we have counts for
17 papers
Simulating strong-field electron-hole dynamics in solids probed by attosecond transient absorption spectroscopy
Stefano M. Cavaletto, Lars Bojer Madsen
We investigate the ultrafast electron dynamics of a model of a wide-bandgap material with inner, valence, and conduction bands excited by an intense few-femtosecond pump and monito…
Transient measurement of phononic states with covariance-based stochastic spectroscopy
G. Sparapassi, S. M. Cavaletto, J. Tollerud +6
We present a novel approach to transient Raman spectroscopy, which combines stochastic probe pulses and a covariance-based detection to measure stimulated Raman signals in alpha-qu…
High temporal and spectral resolution of stimulated x-ray Raman signals with stochastic free-electron-laser pulses
Stefano M. Cavaletto, Daniel Keefer, Shaul Mukamel
The chaotic nature of x-ray free-electron-laser pulses is a major bottleneck that has limited the joint temporal and spectral resolution of spectroscopic measurements. We show how…
Interrogating the temporal coherence of EUV frequency combs with highly charged ions
Chunhai Lyu, Stefano M. Cavaletto, Christoph H. Keitel +1
A scheme to infer the temporal coherence of EUV frequency combs generated from intra-cavity high-order harmonic generation is put forward. The excitation dynamics of highly charged…
Nonlinear coherence effects in transient-absorption ion spectroscopy with stochastic extreme-ultraviolet free-electron laser pulses
Thomas Ding, Marc Rebholz, Lennart Aufleger +21
We demonstrate time-resolved nonlinear extreme-ultraviolet absorption spectroscopy on multiply charged ions, here applied to the doubly charged neon ion, driven by a phase-locked s…
Light-induced states in the transient-absorption spectrum of a periodically pumped strong-field-excited system
Juliane Haug, Stefano M. Cavaletto
The transient-absorption spectrum of a -type three-level system is investigated, when this is periodically excited by a train of equally spaced, -like pump pulses as, e.g., f…
Narrow-band hard-x-ray lasing
Chunhai Lyu, Stefano M. Cavaletto, Christoph H. Keitel +1
Since the advent of x-ray free-electron lasers (XFELs), considerable efforts have been devoted to achieve x-ray pulses with better temporal coherence. Here, we put forward a scheme…
Real-time reconstruction of complex non-equilibrium quantum dynamics of matter
Veit Stooß, Stefano M. Cavaletto, Alexander Blättermann +4
Causality implies that by measuring an absorption spectrum, the time-dependent linear response function can be retrieved. Recent experiments suggest a link between the shape of spe…
Transient-absorption phases with strong probe and pump pulses
Vadim Becquet, Stefano M. Cavaletto
The quantum dynamics of a system of Rb atoms, modeled by a V-type three-level system interacting with intense probe and pump pulses, are studied. The time-delay-dependent transient…
Hyperfine splitting in simple ions for the search of the variation of fundamental constants
Natalia S. Oreshkina, Stefano M. Cavaletto, Niklas Michel +2
Numerous few-electron atomic systems are considered which can be used effectively for observing a potential variation of the fine-structure constant and the electron-proton mas…
Deterministic strong-field quantum control
Stefano M. Cavaletto, Zoltán Harman, Thomas Pfeifer +1
Strong-field quantum-state control is investigated, taking advantage of the full---amplitude and phase---characterization of the interaction between matter and intense ultrashort p…
X-ray fluorescence spectrum of highly charged Fe ions driven by strong free-electron-laser fields
Natalia S. Oreshkina, Stefano M. Cavaletto, Christoph H. Keitel +1
The influence of nonlinear dynamical effects is analyzed on the observed spectra of controversial 3C and 3D astrophysically relevant x-ray lines in neonlike Fe and the A,…
Phase reconstruction of strong-field excited systems by transient-absorption spectroscopy
Z. Liu, S. M. Cavaletto, C. Ott +5
We study the evolution of a V-type three-level system, whose two resonances are coherently excited and coupled by two ultrashort laser pump and probe pulses, separated by a varying…
Astrophysical line diagnosis requires non-linear dynamical atomic modeling
Natalia S. Oreshkina, Stefano M. Cavaletto, Christoph H. Keitel +1
Line intensities and oscillator strengths for the controversial 3C and 3D astrophysically relevant lines in neonlike Fe ions are calculated. We show that, for strong x-ra…
Broadband high-resolution x-ray frequency combs
Stefano M. Cavaletto, Zoltan Harman, Christian Ott +3
Optical frequency combs have had a remarkable impact on precision spectroscopy. Enabling this technology in the x-ray domain is expected to result in wide-ranging applications, suc…
X-ray frequency combs from optically controlled resonance fluorescence
Stefano M. Cavaletto, Zoltan Harman, Christian Buth +1
An x-ray pulse-shaping scheme is put forward for imprinting an optical frequency comb onto the radiation emitted on a driven x-ray transition, thus producing an x-ray frequency com…
Resonance fluorescence in ultrafast and intense x-ray free-electron-laser pulses
S. M. Cavaletto, C. Buth, Z. Harman +4
The spectrum of resonance fluorescence is calculated for a two-level system excited by an intense, ultrashort x-ray pulse made available for instance by free-electron lasers such a…