Attosecond charge migration and its laser control

29th International Conference on Photonic, Electronic, and Atomic Collisions

Kraus, P.M.^1 ; Mignolet, B.^2 ; Baykusheva, D.^1 ; Rupenyan, A.^1 ; Horný, L.^1 ; Penka, E.F.^3 ; Tolstikhin, O.I.^4 ; Schneider, J.^1 ; Jensen, F.^5 ; Madsen, L.B.^6 ; Bandrauk, A.D.^3 ; Remacle, F.^2 ; Wörner, H.J.^1

Laboratorium für Physikalische Chemie, ETH Zürich, Zürich

8093, Switzerland^1

Department of Chemistry, Universitéde Liége, B6c, Liege

B4000, Belgium^2

Laboratoire de Chimie Théorique, Universitéde Sherbrooke, Québec

J1K 2R1, Canada^3

Moscow Institute of Physics and Technology, Dolgoprudny

141700, Russia^4

Department of Chemistry, Aarhus University, Aarhus C

8000, Denmark^5

Department of Physics and Astronomy, Aarhus University, Aarhus C

8000, Denmark^6

关键词: Attosecond time scale;    Attoseconds;    Charge migration;    High harmonics;    Laser control;    Molecular charge;    Multi-dimensional approach;    Quantum amplitude;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/11/112136/pdf
DOI  :  10.1088/1742-6596/635/11/112136

来源: IOP

【 摘 要 】

We advance high-harmonic spectroscopy to resolve molecular charge migration in time and space and simultaneously demonstrate extensive control over the process. A multidimensional approach enables us to reconstruct both quantum amplitudes and phases with a resolution of better than 100 attoseconds and to separately reconstruct field-free and laser- driven charge migration. Our techniques make charge migration in molecules measurable on the attosecond time scale and open new avenues for laser control of electronic primary processes.