Details
| Original language | English |
|---|---|
| Article number | 023201 |
| Journal | Physical review letters |
| Volume | 128 |
| Issue number | 2 |
| Publication status | Published - 14 Jan 2022 |
Abstract
We experimentally and theoretically investigate the influence of the magnetic component of an electromagnetic field on high-order above-threshold ionization of xenon atoms driven by ultrashort femtosecond laser pulses. The nondipole shift of the electron momentum distribution along the light-propagation direction for high energy electrons beyond the 2Up classical cutoff is found to be vastly different from that below this cutoff, where Up is the ponderomotive potential of the driving laser field. A local minimum structure in the momentum dependence of the nondipole shift above the cutoff is identified for the first time. With the help of classical and quantum-orbit analysis, we show that large-angle rescattering of the electrons strongly alters the partitioning of the photon momentum between electron and ion. The sensitivity of the observed nondipole shift to the electronic structure of the target atom is confirmed by three-dimensional time-dependent Schrödinger equation simulations for different model potentials. Our work paves the way toward understanding the physics of extreme light-matter interactions at long wavelengths and high electron kinetic energies.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physical review letters, Vol. 128, No. 2, 023201, 14.01.2022.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Magnetic-Field Effect in High-Order Above-Threshold Ionization
AU - Lin, Kang
AU - Brennecke, Simon
AU - Ni, Hongcheng
AU - Chen, Xiang
AU - Hartung, Alexander
AU - Trabert, Daniel
AU - Fehre, Kilian
AU - Rist, Jonas
AU - Tong, Xiao Min
AU - Burgdörfer, Joachim
AU - Schmidt, Lothar Ph H.
AU - Schöffler, Markus S.
AU - Jahnke, Till
AU - Kunitski, Maksim
AU - He, Feng
AU - Lein, Manfred
AU - Eckart, Sebastian
AU - Dörner, Reinhard
N1 - Funding Information: The experimental work was supported by the DFG (German Research Foundation). K. L. acknowledges support by the Alexander von Humboldt Foundation and thanks Xiaoqing Hu and Wenbin Zhang for helpful discussions. S. E. acknowledges funding of the DFG through Priority Programme SPP 1840 QUTIF. A. H. and K. F. acknowledge support by the German Academic Scholarship Foundation. X. M. T. was supported by Multidisciplinary Cooperative Research Program in CCS, University of Tsukuba. F. H. acknowledges the support by the National Science Foundation of China (No. 11925405). H. N. acknowledges the support by Project No. 11904103 of the National Natural Science Foundation of China (NSFC), Project No. M2692 of the Austrian Science Fund (FWF), and Projects No. 21ZR1420100 and No. 19JC1412200 of the Science and Technology Commission of Shanghai Municipality. Numerical simulations were in part performed on the East China Normal University (ECNU) Multifunctional Platform for Innovation (001).
PY - 2022/1/14
Y1 - 2022/1/14
N2 - We experimentally and theoretically investigate the influence of the magnetic component of an electromagnetic field on high-order above-threshold ionization of xenon atoms driven by ultrashort femtosecond laser pulses. The nondipole shift of the electron momentum distribution along the light-propagation direction for high energy electrons beyond the 2Up classical cutoff is found to be vastly different from that below this cutoff, where Up is the ponderomotive potential of the driving laser field. A local minimum structure in the momentum dependence of the nondipole shift above the cutoff is identified for the first time. With the help of classical and quantum-orbit analysis, we show that large-angle rescattering of the electrons strongly alters the partitioning of the photon momentum between electron and ion. The sensitivity of the observed nondipole shift to the electronic structure of the target atom is confirmed by three-dimensional time-dependent Schrödinger equation simulations for different model potentials. Our work paves the way toward understanding the physics of extreme light-matter interactions at long wavelengths and high electron kinetic energies.
AB - We experimentally and theoretically investigate the influence of the magnetic component of an electromagnetic field on high-order above-threshold ionization of xenon atoms driven by ultrashort femtosecond laser pulses. The nondipole shift of the electron momentum distribution along the light-propagation direction for high energy electrons beyond the 2Up classical cutoff is found to be vastly different from that below this cutoff, where Up is the ponderomotive potential of the driving laser field. A local minimum structure in the momentum dependence of the nondipole shift above the cutoff is identified for the first time. With the help of classical and quantum-orbit analysis, we show that large-angle rescattering of the electrons strongly alters the partitioning of the photon momentum between electron and ion. The sensitivity of the observed nondipole shift to the electronic structure of the target atom is confirmed by three-dimensional time-dependent Schrödinger equation simulations for different model potentials. Our work paves the way toward understanding the physics of extreme light-matter interactions at long wavelengths and high electron kinetic energies.
UR - http://www.scopus.com/inward/record.url?scp=85123816038&partnerID=8YFLogxK
U2 - 10.48550/arXiv.2110.08601
DO - 10.48550/arXiv.2110.08601
M3 - Article
C2 - 35089761
AN - SCOPUS:85123816038
VL - 128
JO - Physical review letters
JF - Physical review letters
SN - 0031-9007
IS - 2
M1 - 023201
ER -