首页|Electron vortices generation of photoelectron of H2+ by counter-rotating circularly polarized attosecond pulses

Electron vortices generation of photoelectron of H2+ by counter-rotating circularly polarized attosecond pulses

扫码查看
原文链接
  • 万方数据
Molecular-frame photoelectron momentum distributions(MF-PMDs)of an H2+molecule ion in the presence of a pair of counter-rotating circularly polarized attosecond extreme ultraviolet laser pulses is studied by numerically solving the two-dimensional time-dependent Schrödinger equation within the frozen-nuclei approximation.At small time delay,our simulations show that the electron vortex structure is sensitive to the time delay and relative phase between the counter-rotating pulses when they are partially overlapped.By adjusting time delay and relative phase,we have the ability to manipulate the MF-PMDs and the appearance of spiral arms.We further show that the internuclear distance can affect the spiral vortices due to its different transition cross sections in the parallel and perpendicular geometries.The lowest-order perturbation theory is employed to interpret these phenomena qualitatively.It is concluded that the internuclear distance-dependent transition cross sections and the confinement effect in diatomic molecules are responsible for the variation of vortex structures in the MF-PMDs.

photoelectron momentum distributionattosecond pulsevortex

杨浩婧、刘晓煜、朱风筝、焦利光、刘爱华

展开 >

Institute of Atomic and Molecular Physics,Jilin University,Changchun 130012,China

School of Mathematics and Physics,Hubei Polytechnic University,Huangshi 435003,China

College of Physics,Jilin University,Changchun 130012,China

Helmholtz-Institut Jena,D-07743 Jena,Germany

State Key Laboratory of Transient Optics and Photonics,Chinese Academy of Sciences,Xi,an 710119,China

展开 >

Natural Science Foundation of Jilin Province,ChinaNational Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaOpen Research Fund of State Key Laboratory of Transient Optics and Photonics

20220101016JC2022YFE0134200121741479185011411774131

2024

10.1088/1674-1056/ad011a

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(1)
  • 50