Bulletin of the American Physical Society
52nd Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Volume 66, Number 6
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: S02.00009 : Attosecond time delays near the photoionisation threshold of neon *
12:06 PM–12:18 PM
Live
Presenter:
Kathryn Hamilton
(Drake University)
Authors:
Matteo Moioli
(Albert-Ludwigs-University Freiburg)
Kathryn Hamilton
(Drake University)
Hamed Ahmadi
(Albert-Ludwigs-University Freiburg)
Dominik Ertel
(Albert-Ludwigs-University)
Marvin Schmoll
(Albert-Ludwigs-University Freiburg)
Alexei N. Grum-Grzhimailo
(Lomonosov Moscow State University)
Elena V. Gryzlova
(Lomonosov Moscow State University)
Maria M. Popova
(Lomonosov Moscow State University)
Maxim D. Kiselev
(Lomonosov Moscow State University)
David Atri Schuller
(Drake University)
Klaus R Bartschat
(Drake University)
Gavin P Menning
(Drake University)
Robert Moshammer
(Max Planck Institut Nuclear Physics Heidelberg)
Thomas Pfeifer
(Max Planck Institut for Nuclear Physics Heidelberg)
Claus Dieter Schroeter
(Max Planck Institut for Nuclear Physics Heidelberg)
giuseppe sansone
(Albert-Ludwigs-University Freiburg)
We present a combined experimental and theoretical study of two-color photoionization of neon, showing that the delay τa determined from one harmonic below and one above the ionization threshold largely deviates from the value expected for sidebands generated only above threshold. The variation is attributed to excited states of neon that can be effectively populated by the 13th harmonic of the XUV frequency comb.
[1] F. Krausz and M. Ivanov, Rev. Mod. Phys. 81, 163 (2009).
[2] J. M. Dahlström, A. L’Huillier, and A. Maquet, J. Phys. B 45, 183001 (2012).
*Supported by the NSF under PHY-1803844, OAC-1834740, and XSEDE PHY-090031.Supported by RFBR 20-52-12023Supported by Deutsche Forschungsgemeinschaft (DFG) (IRTG CoCo (2079),INST 39/1079 (High-Repetition-Rate Attosecond Source for Coincidence Spectroscopy),
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