166 citations · 947 across the 27 of their papers we have counts for
13 papers · 1 filter
Electron Correlation Enables Phase-Coherent One-Attosecond Pulse Trains
Andrés Marchisio, Isobel McSweeney, Paraskevas Tzallas +2
Attosecond synthesis is ultimately a phase problem: a broad spectrum produces an ultrashort waveform only if its harmonics remain phase-locked. We show theoretically that correlate…
Determination of the spectral variation origin in high-order harmonic generation in noble gases
V. E. Nefedova, M. F. Ciappina, O. Finke +7
One key parameter in the high-order harmonic generation (HHG) phenomenon is the exact frequency of the generated harmonic field. Its deviation from perfect harmonics of the laser f…
High-order harmonic generation driven by inhomogeneous plasmonics fields spatially bounded: influence on the cut-off law
E. Neyra, F. Videla, M. F. Ciappina +4
We study high-order harmonic generation (HHG) in model atoms driven by plasmonic-enhanced fields. These fields result from the illumination of plasmonic nanostructures by few-cycle…
Above-threshold ionization (ATI) in multicenter molecules: the role of the initial state
N. Suárez, A. Chacón, E. Pisanty +6
A possible route to extract electronic and nuclear dynamics from molecular targets with attosecond temporal and nanometer spatial resolution is to employ recolliding electrons as `…
Double-electron ionization driven by inhomogeneous fields
A. Chacón, L. Ortmann, F. Cucchietti +5
Electron-electron correlation effects play an instrumental role in our understanding of sequential (SDI) and non-sequential double ionization (NSDI) mechanisms. Here, we present a…
Above-Threshold Ionization and Laser-Induced Electron Diffraction in Diatomic Molecules
N. Suárez, A. Chacón, M. F. Ciappina +3
Strong field photoemission and electron recollision provide a viable route to extract electronic and nuclear dynamics from molecular targets with attosecond temporal resolution. Ho…
Signatures of double-electron re-combination in high-order harmonic generation driven by spatially inhomogeneous fields
A. Chacón, M. F. Ciappina, M. Lewenstein
We present theoretical studies of high-order harmonic generation (HHG) driven by plasmonic fields in two-electron atomic systems. Comparing the two-active electron and single-activ…
Carrier-wave Rabi flopping signatures in high-order harmonic generation for alkali atoms
M. F. Ciappina, J. A. Pérez-Hernández, A. S. Landsman +4
We present the first theoretical investigation of carrier-wave Rabi flopping in real atoms by employing numerical simulations of high-order harmonic generation (HHG) in alkali spec…
Quantum-orbit analysis of above threshold ionization by intense spatially inhomogeneous field
T. Shaaran, M. F. Ciappina, M. Lewenstein
We perform a detailed analysis of above threshold ionization (ATI) in atoms within the strong field approximation (SFA) by considering spatially inhomogeneous monochromatic laser f…
High-order harmonic generation by enhanced plasmonic near-fields in metal nanoparticules
T. Shaaran, M. F. Ciappina, R. Guichard +5
We present theoretical investigations of high-order harmonic generation (HHG) resulting from the interaction of noble gases with localized surface plasmons. These plasmonic fields…
Electron momentum distributions and photoelectron spectra of atoms driven by intense spatially inhomogeneous field
M. F. Ciappina, J. A. Pérez-Hernández, T. Shaaran +2
We use three dimensional time-dependent Schrödinger equation (3D--TDSE) to calculate angular electron momentum distributions and photoelectron spectra of atoms driven by spatially…
Estimating the plasmonic field enhancement using high-order harmonic generation: The role of inhomogeneity of the fields
T. Shaaran, M. F. Ciappina, M. Lewenstein
In strong field laser physics it is a common practice to use the high-order harmonic cutoff to estimate the laser intensity of the pulse that generates the harmonic radiation. Base…
Quantum-orbit analysis of high-order harmonic generation by resonant plasmon field enhancement
T. Shaaran, M. F. Ciappina, M. Lewenstein
We perform a detailed analysis of high-order harmonic generation (HHG) in atoms within the strong field approximation (SFA) by considering spatially inhomogeneous monochromatic las…