7th International Conference on Attosecond Science and Technology

Session

Ultrafast quantum dynamics in laser fields

1 Jul 2019, 14:00

University of Szeged Congress Centre

324. Strong Field Physics in Topological Systems

Álvaro Jiménez-Galán (Max Born Institute)

01/07/2019, 14:00

invited talks

We use unique properties of primary electronic response to non-resonant optical fields to reveal topological effects in strong field dynamics of quantum matter, including topologically induced time delays in strong-field optical response.

189. Attoclock Experiments Using Atomic and Molecular Hydrogen

Dr Satya Sainadh Undurti (Technion)

01/07/2019, 14:30

oral

We present the results of the first attoclock experiment using atomic hydrogen wherein the tunnelling delays under strong-field ionisation were probed with a reaction microscope and 770 nm circularly polarised ($\epsilon=0.84$) few cycle laser pulses in the intensity range of 1.65 to $3.9 \times 10^{14}$ W/cm$^2$.

118. The Strong-Field Response of an Ionization Threshold

Mr Paul Birk (Max Planck Institute for Nuclear Physics)

01/07/2019, 14:45

oral

We observed light-induced structures near the ionization threshold in the attosecond transient absorption spectrum in helium. By comparing to multi-level model simulations, we isolate the response of the onset of a continuum.

174. Molecular Orbital Imprint in Laser-driven Electron Recollision

Dr Jochen Mikosch (Max Born Institute)

01/07/2019, 15:00

oral

One of the commonly used assumptions underlying the analysis of attosecond strong-field spectroscopies is that in the propagation step any information on the initial state of the ionized electron is lost. For example, it is commonly assumed that any information on the orbital from which the electron originates is "washed out" during the propagation step, and no longer influences the...

290. Phase Analysis of Multidimensional Inline Extreme Ultraviolet Interferometer

Adam Wyatt (Central Laser Facility)

01/07/2019, 15:15

oral

We demonstrate an inline extreme ultraviolet interferometer based on high harmonic generation and reveal phase sensitive measurements of electronic quantum trajectory perturbations when driven by a variable elliptically polarised field.

227. Amplification of Intense Light Fields by Nearly Free Electrons

Dr Maria Richter (Max-Born-Institut)

01/07/2019, 15:30

oral

We present new opportunities for enhancing and controlling lasing inside laser filaments. The novel, general mechanism relies on laser-dressed states in neutral atoms and uses shaped laser pulses to control their population and seed gain.