title: Streaking temporal double-slit interference by an orthogonal two-color laser field.
abstract: We investigate electron momentum distributions from single ionization of Ar by two orthogonally polarized laser pulses of different color. The two-color scheme is used to experimentally control the interference between electron wave packets released at different times within one laser cycle. This intracycle interference pattern is typically hard to resolve in an experiment. With the two-color control scheme, these features become the dominant contribution to the electron momentum distribution. Furthermore, the second color can be used for streaking of the otherwise interfering wave packets establishing a which-way marker. Our investigation shows that the visibility of the interference fringes depends on the degree of the which-way information determined by the controllable phase between the two pulses.
authors.affiliation: Institut für Kernphysik, Goethe-Universität Frankfurt, 60438 Frankfurt am Main, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Richter
authors.affiliation: Institut für Kernphysik, Goethe-Universität Frankfurt, 60438 Frankfurt am Main, Germany.
authors.forename: Maksim
authors.initials: M
authors.lastname: Kunitski
authors.affiliation: Institut für Kernphysik, Goethe-Universität Frankfurt, 60438 Frankfurt am Main, Germany.
authors.forename: Markus
authors.initials: M
authors.lastname: Schöffler
authors.affiliation: Institut für Kernphysik, Goethe-Universität Frankfurt, 60438 Frankfurt am Main, Germany.
authors.forename: Till
authors.initials: T
authors.lastname: Jahnke
authors.affiliation: Institut für Kernphysik, Goethe-Universität Frankfurt, 60438 Frankfurt am Main, Germany.
authors.forename: Lothar P H
authors.initials: LP
authors.lastname: Schmidt
authors.affiliation: State Key Laboratory for Mesoscopic Physics and Department of Physics, Peking University, Beijing 100871, People's Republic of China.
authors.forename: Min
authors.initials: M
authors.lastname: Li
authors.affiliation: State Key Laboratory for Mesoscopic Physics and Department of Physics, Peking University, Beijing 100871, People's Republic of China.|Collaborative Innovation Center of Quantum Matter, Beijing 100871, China.
authors.forename: Yunquan
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Institut für Kernphysik, Goethe-Universität Frankfurt, 60438 Frankfurt am Main, Germany.
authors.forename: Reinhard
authors.initials: R
authors.lastname: Dörner