Attosecond Time-Resolved Imaging of Molecular Structure by Photoelectron Holography

Département de Chimie, Université de Sherbrooke, Sherbrooke, Quebéc J1K 2R1, Canada.
Physical Review Letters (Impact Factor: 7.73). 06/2012; 108(26). DOI: 10.1103/PhysRevLett.108.263003

ABSTRACT Dynamic imaging of the molecular structure of H2+ is investigated by attosecond photoelectron holography. The interference between direct (reference) and backward rescattered (signal) photoelectrons in attosecond photoelectron holography reveals the birth time of both channels and the spatial information of molecular structure. This is confirmed by simulations with a semiclassical model and numerical solutions of the corresponding time-dependent Schrödinger equation, suggesting an attosecond time-resolved way of imaging molecular structure obtained from laser induced rescattering of ionized electrons. It is shown that both short and long rescattered electron trajectories can be imaged from the momentum distribution.