166 citations · 947 across the 27 of their papers we have counts for
27 papers
Geometric Control of Cat States in High Harmonic Generation
Arti Gaharwar, Rocío Borrego-Varillas, Marcelo F. Ciappina +6
High-harmonic generation (HHG) provides a powerful platform for exploring the interaction between intense laser fields and matter on ultrafast timescales. Beyond its conventional d…
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…
Weak measurement in strong laser field physics
Philipp Stammer, Javier Rivera-Dean, Marcelo F. Ciappina +1
The advantage of attosecond measurements is the possibility of time-resolving ultrafast quantum phenomena of electron dynamics. Many such measurements are of interferometric nature…
Ultrafast quantum light uncertainty dynamics in real time
Mohamed Sennary, Javier Rivera-Dean, Mohamed ElKabbash +3
Advancements in quantum optics and squeezed light generation have transformed various domains of quantum science and technology. However, real-time quantum dynamics remain an under…
Topological phase transitions via attosecond x-ray absorption spectroscopy
Juan F. P. Mosquera, Giovanni Cistaro, Mikhail Malakhov +6
We present a numerical experiment that demonstrates the possibility to capture topological phase transitions via an x-ray absorption spectroscopy scheme. We consider a Chern insula…
Metrological robustness of high photon number optical cat states
Philipp Stammer, Tomás Fernández Martos, Maciej Lewenstein +1
In the domain of quantum metrology, cat states have demonstrated their utility despite their inherent fragility with respect to losses. Here, we introduce noise robust optical cat…
Entanglement and squeezing of the optical field modes in high harmonic generation
Philipp Stammer, Javier Rivera-Dean, Andrew S. Maxwell +5
Squeezing of optical fields, used as a powerful resource for many applications, and the radiation properties in the process of high harmonic generation have thus far been considere…
Generation of optical Schrödinger cat states in intense laser-matter interactions
Maciej Lewenstein, Marcelo F. Ciappina, Emilio Pisanty +4
The physics of intense laser-matter interactions is described by treating the light pulses classically, anticipating no need to access optical measurements beyond the classical lim…
Suppression of individual peaks in two-colour high harmonic generation
Sambit Mitra, Shubhadeep Biswas, Johannes Schötz +11
This work investigates the suppression of individual harmonics, simultaneously affecting specific even and odd orders in the high-harmonic spectra generated by strongly tailored, t…
Perspective on petahertz electronics and attosecond nanoscopy
J. Schoetz, Z. Wang, E. Pisanty +3
The field of attosecond nanophysics, combining the research areas of attosecond physics with nanoscale physics, has experienced a considerable rise in recent years both experimenta…
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 `…
Phase matching effects in high harmonic generation at the nanometer scale
Manuel Blanco, Carlos Hernández-García, Alexis Chacón +3
Plasmon resonances are known to amplify the electromagnetic fields near metallic nanostructures. Therefore, they are considered to provide a promising scheme to generate extreme-ul…
Spin-valley dynamics of electrically driven ambipolar carbon-nanotube quantum dots
E. N. Osika, A. Chacón, M. Lewenstein +1
An ambipolar - double quantum dot defined by potential variation along a semiconducting carbon-nanotube is considered. We focus on the (1e,1h) charge configuration with a sin…
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…
High-order harmonic generation driven by metal nanotip photoemission: theory and simulations
M. F. Ciappina, J. A. Pérez-Hernández, M. Lewenstein +2
We present theoretical predictions of high-order harmonic generation (HHG) resulting from the interaction of short femtosecond laser pulses with metal nanotips. It has been demonst…
High energy photoelectron emission from gases using plasmonics enhanced near-fields
M F Ciappina, T Shaaran, R Guichard +6
We study theoretically the photoelectron emission in noble gases using plasmonic enhanced near-fields. We demonstrate that these fields have a great potential to generate high ener…
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…