Open AccessMolecular photoelectron holography with circularly polarized laser pulses
Author(s) -
Weifeng Yang,
Zhihao Sheng,
Xingpan Feng,
Miaoli Wu,
Zhangjin Chen,
Song Xia
Publication year - 2014
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.002519
Subject(s) - laser , optics , physics , electron , holography , tilt (camera) , circular polarization , atomic physics , electron holography , wavelength , interference (communication) , perpendicular , mechanical engineering , channel (broadcasting) , geometry , electrical engineering , mathematics , quantum mechanics , engineering , microstrip
We investigate the photoelectron momentum distribution of molecular-ion H2+driven by ultrashort intense circularly polarized laser pulses. Both numerical solutions of the time-dependent Schrödinger equation (TDSE) and a quasiclassical model indicate that the photoelectron holography (PH) with circularly polarized pulses can occur in molecule. It is demonstrated that the interference between the direct electron wave and rescattered electron wave from one core to its neighboring core induces the PH. Moreover, the results of the TDSE predict that there is a tilt angle between the interference pattern of the PH and the direction perpendicular to the molecular axis. Furthermore, the tilt angle is sensitively dependent on the wavelength of the driven circularly polarized pulse, which is confirmed by the quasiclassical calculations. The PH induced by circularly polarized laser pulses provides a tool to resolve the electron dynamics and explore the spatial information of molecular structures.