SAMOP 2023 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 17: Interaction with Strong or Short Laser Pulses II (joint session A/MO)
A 17.2: Vortrag
Mittwoch, 8. März 2023, 15:00–15:15, F107
Towards strong-field XUV coherent control — •F. Richter1, C. Manzoni2, A. Ngai1, M. Michelbach1, D. Uhl1, F. Landmesser1, N. Rendler1, S. D. Ganeshamandiram1, C. Callegari3, M. Di Fraia3, N. Pal3, O. Plekan3, G. Sansone1, K. Prince3, T. Laarmann4, M. Mudrich5, P. Rebernik3, R. Feifel6, R. Squibb6, M. Wollenhaupt7, S. Hartweg1, G. Cerullo2, F. Stienkemeier1, and L. Bruder1 — 1Institute of Physics, University of Freiburg — 2Dipartimento di Fisica, Politecnico di Milano — 3Elettra - Sincrotrone Trieste S.C.p.A. — 4Department of Physics, University of Hamburg — 5Department of Physics and Astronomy, Aarhus University — 6Department of Physics, University of Gothenburg — 7Institute of Physics, University of Oldenburg
Within the NIR and VIS wavelength regime there are various coherent control schemes. However, for coherent control in the XUV regime two major challenges arise: (i) The technical challenge to manipulate the pulses. (ii) XUV radiation induces typically extremely fast relaxation dynamics, which compete with the coherent control scheme. Ultrafast control schemes are, hence, paramount which can be achieved by using intense pulses beyond the weak field regime. Intense optical fields are known to induce Rabi oscillations leading to Autler-Townes level splittings. We investigate the population control of the respective sub-levels as shown in the NIR [1]. We will present simulations of the expected Autler-Townes splitting as well as preliminary results from our beamtime at the free electron laser FERMI.
[1] M. Wollenhaupt et al., Phys. Rev. A 68, 015401 (2003).