Bonn 2025 – wissenschaftliches Programm
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K: Fachverband Kurzzeit- und angewandte Laserphysik
K 5: Laser-Beam Matter Interaction – Light and Radiation Sources II
K 5.3: Vortrag
Dienstag, 11. März 2025, 11:45–12:00, HS XI ITW
GASFIR: How to retrieve the dynamics of strong-field ionization from ionization probabilities — •Manoram Agarwal1 and Vladislav Yakovlev2 — 1Max Planck Institute of Quantum Optics — 2Ludwig-Maximilians-Universität München
We introduce the General Approximator for Strong-Field Ionization Rates (GASFIR), a model that reconstructs nonadiabatic, sub-optical-cycle ionization dynamics for an arbitrary optical pulse impinging on an atom or solid. This reconstruction uses only a few ionization probabilities for precisely known electric fields as input. These probabilities can be obtained from numerical calculations or experimental measurements, highlighting the non-trivial fact that ionization probabilities contain sufficient information to reconstruct the underlying dynamics. Due to its nonadiabatic nature, GASFIR is applicable to multiphoton and tunneling ionization, as well as the intermediate regime.
Keywords: Non-adiabatic Ionization rate; tunneling Ionization; multiphoton ionization; Field resolved measurements; ionization dynamics