Abstract

We propose a model for studying the ionization, photoelectron spectra, and spin polarization of xenon atoms under intense circularly polarized (CP) pulses by solving the time-dependent Schrödinger equation (TDSE) with an effective potential for Xe. The ionization mechanism is mainly due to multiphoton absorption in these strong CP fields. The effective potential of a single active electron for Xe consists of asymptotic Coulomb and parametric screening parts and yields low-lying levels that are comparable to those by other models for the total angular momentum $J = 3/2$ of ${{\rm Xe}^ +}$ and new for $J = 1/2$. We show in detail the absorption pathways, above-threshold ionization (ATI) spectra, and spin polarization mechanisms of photoelectrons originated from the initial state $5{p_{m_l}}$ of Xe with the magnetic quantum number ${m_l}$ being $-{1}$, 0, or 1. There exists a substructure with sub-peaks in each of multiple ATI peaks from $5{p_{- 1}}$ due to pulse effects on the valence electron passing through the absorption pathways. ATI and spin polarization results agree qualitatively with experimental data at the focal volume average to include the spatial effect of CP pulses. We also present the spin polarization results of the widely used strong-field approximation model (SFA), which are inconsistent with those of TDSE and experiments. This shows that TDSE is more accurate with more details than SFA for studying spin polarization in strong CP fields.

© 2021 Optical Society of America

Full Article  |  PDF Article
More Like This
Controlling the atomic-orbital-resolved photoionization for neon atoms by counter-rotating circularly polarized attosecond pulses

Mao-Yun Ma, Jun-Ping Wang, Wen-Quan Jing, Zhong Guan, Zhi-Hong Jiao, Guo-Li Wang, Jian-Hong Chen, and Song-Feng Zhao
Opt. Express 29(21) 33245-33256 (2021)

Study of the circular dichroism of He+ ion

Jen-Hao Chen, Jinn-Liang Liu, Shih-Da Jheng, Szu-Cheng Cheng, and Tsin-Fu Jiang
J. Opt. Soc. Am. B 36(12) 3597-3606 (2019)

Imaging of electron transition and bond breaking in the photodissociation of H2+ via ultrafast X-ray photoelectron diffraction

Zhaopeng Sun, Hongbin Yao, Xianghe Ren, Yunquan Liu, Dehua Wang, Wenkai Zhao, Chunyang Wang, and Chuanlu Yang
Opt. Express 29(7) 10893-10902 (2021)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Data Availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (43)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics