|
Toru Morishita*, Anh-Thu Le, Z. J. Chen and C. D. Lin
We analyzed thoretical results obtained from solving the time-dependent Schrödinger equation of atoms in few-cycle laser pulses, from which we established the general conclusion that differential elastic scattering cross sections and photo-recombination cross sections of the target ion with free electrons can be extracted accurately from laser-generated high-energy photoelectron momentum spectra, and high-order harmonic spectra, respectively. Since both electron scattering and photoionization (the inverse of photo-recombination) are the conventional means for interrogating the structure of atoms and molecules, this result shows that existing few-cycle infrared laser pulses can be implemented for ultrafast imaging of transient molecules with temporal resolution of a few femtoseconds. *Permanent address: Department of Applied Physics and Chemistry, University of Electro-Communications, 1-5-1 Chofu-go-oka, Chofu-shi, Tokyo, 182-8585, Japan |
|