Identifying photoelectron releasing order in strong-field dissociative ionization of H2

• DOI: 10.1364/oe.495066
• Publication Date: 2023-07-05T12:00:54Z
• Authors: Jihong Tong; Shengzhe Pan; Wenyu Jiang; Lulu Han; Yidan Xu; Zitan Zuo; Peifen Lu; Xiaochun Gong; Jian Wu
• Keywords: Above threshold ionization; Field desorption; Photoelectric effect; Atmospheric-pressure laser ionization

Driven by intense laser fields, the outgoing photoelectrons in molecules possess a quiver motion, resulting rise of effective ionization potential. The coupling field-dressed potential with abundant molecular dynamics complicates laser-molecule interactions. Here, we demonstrate an approach to resolve photoelectron releasing order dissociative and non-dissociative channels multiphoton driven orthogonally polarized two-color femtosecond pulse. kinetic energy releases regular nodes angular distributions due participation different continuum partial waves allow us deduce various channels. It returns ponderomotive experienced electron reveals corresponding photoionization instants within Our results provide route explore complex strong-field using two-dimensional momentum spectroscopy.