7th International Conference on Attosecond Science and Technology

Session

Strong field physics in topological and chiral materials

1 Jul 2019, 08:30

University of Szeged Congress Centre

322. Photoionization Of Chiral Molecules By Bicircular Bichromatic Fields: A Chiral Attoclock

Dr Yann Mairesse (University of Bordeaux)

01/07/2019, 08:30

invited talks

We present experimental and theoretical investigations on photoionization of chiral molecules by counter-rotating bicircular bichromatic lasers. Forward/backward asymmetries in the photoelectron momentum distributions reveal the influence of chirality on sub-cycle interferences and angular streaking.

323. Strong-Field Laser Physics in Topological Condensed Matter

Prof. Dieter Bauer (University of Rostock)

01/07/2019, 09:00

invited talks

I will illustrate the electron dynamics in 2D, laser-driven topological matter with the help of simple model systems.

258. Background-Free Electric Dipole based Chiral-HHG by Symmetry Breaking Spectroscopy: Theory and Experiment

Mr Ofer Neufeld (Technion)

01/07/2019, 09:30

oral

We propose and demonstrate experimentally an ultrafast chirality spectroscopy technique based on non-collinear harmonic generation, which relies only on electric-dipole interactions. The scheme is based on symmetry breaking, i.e. the chiral signal resides in harmonics that are forbidden when the medium is achiral/racemic, leading to a background-free signal. Moreover, by controlling the pump’s...

284. Locally and Globally Chiral Fields for Ultimate Control of Chiral Light Matter Interaction

Dr David Ayuso (Max Born Institute)

01/07/2019, 09:45

oral

We introduce locally and globally chiral fields and demonstrate the highest possible degree of control over nonlinear chiroptical response, fully suppressing high harmonic emission in a desired enantiomer while enhancing it in its mirror twin.

21. Controlling Sub-cycle Instantaneous Optical Chirality in the Photoionization of Chiral Molecules

Ms Shaked Rozen (Weizmann Institute of Science)

01/07/2019, 10:00

oral

Our study shows a sub cycle chiral response between a light pulse with zero total chirality, and a chiral molecule. We engineer an electric field whose instantaneous chirality changes sign every half cycle, and observe an instantaneous chiral response. The response can be controlled by changing the temporal behavior of the pulse, on a sub cycle resolution. We show qualitative agreement between...