Quantum control and characterization of ultrafast ionization with orthogonal two-color laser pulses.

ABSTRACT: We study ultrafast ionization dynamics using orthogonally polarized two-color (OTC) laser pulses involving the resonant "first plus second" (ω + 2ω) scheme. The scheme is illustrated by numerical simulations of the time-dependent Schrödinger equation and recording the photoelectron momentum distribution. On the basis of the simulations of this resonant ionization, we identify signatures of the dynamic Autler-Townes effect and dynamic interference, in which their characterization is not possible in the spectral domain. Taking advantage of the OTC scheme we show that these dynamical effects, which occur at the same time scale, can be characterized in momentum space by controlling the spatial quantum interference. In particular, we show that with the use of this control scheme, one can tailor

SUBMITTER: Agueny H 

PROVIDER: S-EPMC6959349 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature