166 citations · 229 across the 8 of their papers we have counts for
5 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…
Two-Electron Effects Extend High-Harmonic Generation into the keV Regime
Isobel McSweeney, Andres Marchisio, Javier Rivera-Dean +4
Two-electron processes can generate high harmonics beyond the conventional single-active-electron cutoff. Motivated by recent experimental evidence of an extended secondary plateau…
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…
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…
Tailoring high-order harmonic generation with nonhomogeneous fields and electron confinement
M. F. Ciappina, Srdjan S. Acimovic, T. Shaaran +3
We study high-order harmonic generation (HHG) resulting from the illumination of plasmonic nanostructures with a short laser pulse. We show that both the inhomogeneities of the loc…