Publications (19)
Multi-octave supercontinuum from mid-IR filamentation in bulk
F. Silva, D. Austin, A. Thai +4
In supercontinuum generation, various propa- gation effects combine to produce a dramatic spec- tral broadening of intense ultrashort optical pulses with far reaching possibilities…
Molecular structure retrieval directly from laboratory-frame photoelectron spectra in laser-induced electron diffraction
A. Sanchez, K. Amini, S. -J. Wang +12
Ubiquitous to most molecular scattering methods is the challenge to retrieve bond distance and angle from the scattering signals since this requires convergence of pattern matching…
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…
Attosecond Physics and Quantum Information Science
M. Lewenstein, N. Baldelli, U. Bhattacharya +14
In this article, we will discuss a possibility of a symbiosis for attophysics (AP) and quantum information (QI) and quantum technologies (QT). We will argue that within few years A…
Phase-preserving chirped-pulse optical parametric amplification to 17.3 fs directly from a Ti:Sapphire oscillator
C. P. Hauri, P. Schlup, G. Arisholm +2
Phase-stabilized 12-fs, 1-nJ pulses from a commercial Ti:sapphire oscillator are directly amplified in a chirped-pulse optical parametric amplifier and recompressed to yield near-t…
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 `…
High-order harmonic generation from inhomogeneous fields
M. F. Ciappina, J. Biegert, R. Quidant +1
We present theoretical studies of high-order harmonic generation (HHG) produced by non-homogeneous fields as resulting from the illumination of plasmonic nanostructures with a shor…
Influence of orbital symmetry on diffraction imaging with rescattering electron wave packets
M. G. Pullen, B. Wolter, A. -T. Le +9
The ability to directly follow and time resolve the rearrangement of the nuclei within molecules is a frontier of science that requires atomic spatial and few-femtosecond temporal…
Few-cycle mid-infrared pulses from BaGa2GeSe6
U. Elu, L. Maidment, L. Vamos +6
BGGSe is a newly developed nonlinear material that is attractive for ultrabroad frequency mixing and ultrashort pulse generation due to its comparably low dispersion and high damag…
Coherent Control of Vibrational State Population in a Nonpolar Molecule
A. Picón, J. Biegert, A. Jaron-Becker +1
A coherent control scheme for the population distribution in the vibrational states of nonpolar molecules is proposed. Our theoretical analysis and results of numerical simulations…
Pulse length effects in long wavelength driven non-sequential double ionization
H. Jiang, M. Mandrysz, A. Sanchez +8
We present a joint experimental and theoretical study of non-sequential double ionization (NSDI) in argon driven by a 3100-nm laser source. The correlated photoelectron momentum di…
0.5 keV soft X-ray attosecond continua
S. M. Teichmann, F. Silva, S. L. Cousin +2
Attosecond light pulses in the extreme ultraviolet have drawn a great deal of attention due to their ability to interrogate electronic dynamics in real time. Nevertheless, to follo…
Laser-induced electron diffraction in the over-the-barrier ionization (OBI) regime
B. Belsa, K. M. Ziems, A. Sanchez +4
Large polyatomic molecules typically exhibit low ionization potentials, Ip, leading to over-the-barrier ionization (OBI) already at relatively low intensities (~1013 W/cm2). We rev…
Non-Adiabatic Electronic and Vibrational Ring-Opening Dynamics resolved with Attosecond Core-Level Spectroscopy
S. Severino, K. M. Ziems, M. Reduzzi +5
Non-adiabatic dynamics and conical intersections play a central role in the chemistry of most polyatomic molecules, ranging from isomerization to heterocyclic ring opening and avoi…
Probing the energy conversion pathways between light, carriers and lattice in real time with attosecond core-level spectroscopy
T. P. H. Sidiropoulos, N. Di Palo, D. E. Rivas +16
Detection of the energy conversion pathways, between photons, charge carriers, and the lattice is of fundamental importance to understand fundamental physics and to advance materia…
Above threshold ionization by few-cycle spatially inhomogeneous fields
M. F. Ciappina, J. A. Pérez-Hernández, T. Shaaran +3
We present theoretical studies of above threshold ionization (ATI) produced by spatially inhomogeneous fields. This kind of field appears as a result of the illumination of plasmon…
Enabling high-precision 3D strong-field measurements - Ionization with low-frequency fields in the tunneling regime
J. Dura, N. Camus, A. Thai +8
Ionization of an atom or molecule presents surprising richness beyond our current understanding: strong-field ionization with low-frequency fields recently revealed unexpected kine…
Enhanced optical conductivity and many-body effects in strongly-driven photo-excited semi-metallic graphite
T. P. H. Sidiropoulos, N. Di Palo, D. E. Rivas +4
The excitation of quasi-particles near the extrema of the electronic band structure is a gateway to electronic phase transitions in condensed matter. In a many-body system, quasi-p…
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…