Bulletin of the American Physical Society
52nd Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Monday–Friday, May 31–June 4 2021; Virtual; Time Zone: Central Daylight Time, USA
Session S02: Strong-field and attosecond electron dynamics
10:30 AM–12:42 PM,
Thursday, June 3, 2021
Chair: Alexandra Landsman, Ohio State University
Abstract: S02.00011 : Multi-Sideband RABBITT in Ar: Experiment and Theory*
12:30 PM–12:42 PM
Klaus R Bartschat
The reconstruction of attosecond beating by interference of two-photon transitions (RABBITT) method is a widely employed technique to measure attosecond time delays in photo-ionization processes . Recently, a three-sideband scheme was suggested  and analyzed in detail for atomic hydrogen .
Here we present our first experimental data using an Ar target, which is easier to handle experimentally but more challenging for theory, due to the multi-electron nature and the active 3p electron having a non-vanishing orbital angular momentum. Consequently, we used the multi-electron R-matrix with time dependence method (RMT)  to generate theoretical predictions that will be compared with experimental data.
 J. Dahlström et al., Chem. Phys. 414 (2013) 53.
 A. Harth et al., PRA 99 (2019) 023410.
 D. Bharti et al., PRA 103 (2021) 022834.
 A. C. Brown et al., Comput. Phys. Comm. (2019) 107062.
*Work supported by the NSF under PHY-1803844, OAC-1834740, PHY-2012078, XSEDE-090031, the DFG under SPP-1840: 411044455, and by the IMPRS-QD Heidelberg.
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