Circularly polarized RABBITT applied to a Rabi-cycling atom
(2024) In Physical Review A 109(4).- Abstract
We utilize the reconstruction of attosecond beating by interference of two-photon transitions (RABBITT) technique to study the phase of a Rabi-cycling atom using circularly polarized extreme ultraviolet and infrared fields, where the infrared field induces Rabi oscillations between the 2s and 2p states of lithium. Autler-Townes splittings are observed in sidebands of the photoelectron spectra and the relative phases of outgoing electron wave packets are retrieved from the azimuthal angle. In this RABBITT scheme, more ionization pathways beyond the usual two-photon pathways are required. Our results show that the polar-angle-integrated and polar-angle-resolved RABBITT phases have different behaviors when the extreme ultraviolet and... (More)
We utilize the reconstruction of attosecond beating by interference of two-photon transitions (RABBITT) technique to study the phase of a Rabi-cycling atom using circularly polarized extreme ultraviolet and infrared fields, where the infrared field induces Rabi oscillations between the 2s and 2p states of lithium. Autler-Townes splittings are observed in sidebands of the photoelectron spectra and the relative phases of outgoing electron wave packets are retrieved from the azimuthal angle. In this RABBITT scheme, more ionization pathways beyond the usual two-photon pathways are required. Our results show that the polar-angle-integrated and polar-angle-resolved RABBITT phases have different behaviors when the extreme ultraviolet and infrared fields have co- and counter-rotating circular polarizations, which are traced back to the different ionization channels according to the selection rules in these two cases and their competition relying on the propensity rule in laser-assisted photoionization.
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- author
- Liao, Yijie ; Olofsson, Edvin LU ; Dahlström, Jan Marcus LU ; Pi, Liang Wen ; Zhou, Yueming and Lu, Peixiang
- organization
- publishing date
- 2024-04
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review A
- volume
- 109
- issue
- 4
- article number
- 043104
- publisher
- American Physical Society
- external identifiers
-
- scopus:85189338975
- ISSN
- 2469-9926
- DOI
- 10.1103/PhysRevA.109.043104
- language
- English
- LU publication?
- yes
- id
- 416facdc-57d5-49a1-816d-c2e2e1b1fb2c
- date added to LUP
- 2024-04-26 15:11:33
- date last changed
- 2024-05-10 16:39:51
@article{416facdc-57d5-49a1-816d-c2e2e1b1fb2c,
abstract = {{<p>We utilize the reconstruction of attosecond beating by interference of two-photon transitions (RABBITT) technique to study the phase of a Rabi-cycling atom using circularly polarized extreme ultraviolet and infrared fields, where the infrared field induces Rabi oscillations between the 2s and 2p states of lithium. Autler-Townes splittings are observed in sidebands of the photoelectron spectra and the relative phases of outgoing electron wave packets are retrieved from the azimuthal angle. In this RABBITT scheme, more ionization pathways beyond the usual two-photon pathways are required. Our results show that the polar-angle-integrated and polar-angle-resolved RABBITT phases have different behaviors when the extreme ultraviolet and infrared fields have co- and counter-rotating circular polarizations, which are traced back to the different ionization channels according to the selection rules in these two cases and their competition relying on the propensity rule in laser-assisted photoionization.</p>}},
author = {{Liao, Yijie and Olofsson, Edvin and Dahlström, Jan Marcus and Pi, Liang Wen and Zhou, Yueming and Lu, Peixiang}},
issn = {{2469-9926}},
language = {{eng}},
number = {{4}},
publisher = {{American Physical Society}},
series = {{Physical Review A}},
title = {{Circularly polarized RABBITT applied to a Rabi-cycling atom}},
url = {{http://dx.doi.org/10.1103/PhysRevA.109.043104}},
doi = {{10.1103/PhysRevA.109.043104}},
volume = {{109}},
year = {{2024}},
}