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- Title
Attosecond Interferometry Involving Discrete States.
- Authors
Popova, M. M.; Yudin, S. N.; Gryzlova, E. V.; Kiselev, M. D.; Grum-Grzhimailo, A. N.
- Abstract
In the paper we theoretically investigate the features of RABBITT (Reconstruction of Attosecond Beating By Interference of Two-photon Transitions) spectroscopy under conditions when transitions through discrete spectrum states play a significant role. Two approaches are applied in the article: the numerical solution of rate equations with continuum discretization and the perturbation theory up to the third order in amplitude. Both approaches use transition matrix elements and photoionization amplitudes obtained by the high-precision R-matrix method. Within the framework of these approaches, photoelectron spectra, the amplitude and phase of RABBITT oscillations were obtained, and the effect of the seed optical field intensity and detuning from a resonance upon excitation of discrete states was studied.
- Subjects
NUMERICAL solutions to equations; PHASE oscillations; PERTURBATION theory; TRANSITION metals; PHOTOELECTRON spectra; PHOTOIONIZATION
- Publication
Journal of Experimental & Theoretical Physics, 2023, Vol 136, Issue 3, p259
- ISSN
1063-7761
- Publication type
Article
- DOI
10.1134/S1063776123030044