Backward rescattered photoelectron holography in strong-field ionization Project supported by the Key Science and Technology Research of Henan Province, China (Grant Nos. 162102210111 and 172102310471) and the National Key Research and Development Program of China (Grant No. 2017YFB0403502). |
(color online) (a) The electric field (red solid curve) and corresponding vector potential (blue dashed curve) of the few cycle laser field. The intensity of the 800-nm laser field is 1.0 × 1014 W/cm2. The duration of the laser pulse is τ = 2T (T is the optical cycle period of the 800-nm pulse). The black arrows A and B indicate the ionization time of the direct electron and rescattered electron that form the backward rescattered photoelectron hologram, respectively. (b) The simulated photoelectron momentum distribution of the hydrogen atom ionized by the laser pulse in panel (a), obtained by numerically solving a time-dependent Schrödinger equation. |