title: Transverse electron momentum distribution in tunneling and over the barrier ionization by laser pulses with varying ellipticity.
abstract: We study transverse electron momentum distribution in strong field atomic ionization driven by laser pulses with varying ellipticity. We show, both experimentally and theoretically, that the transverse electron momentum distribution in the tunneling and over the barrier ionization regimes evolves in a qualitatively different way when the ellipticity parameter describing polarization state of the driving laser pulse increases.
authors.affiliation: Center for Relativistic Laser Science, Institute for Basic Science, Gwangju 500-712, Republic of Korea.|Research School of Physics and Engineering, The Australian National University, Canberra ACT 0200, Australia.
authors.forename: I A
authors.initials: IA
authors.lastname: Ivanov
authors.affiliation: Research School of Physics and Engineering, The Australian National University, Canberra ACT 0200, Australia.
authors.forename: A S
authors.initials: AS
authors.lastname: Kheifets
authors.affiliation: School of Natural Sciences and Centre for Quantum Dynamics, Griffith University, Nathan QLD 4111, Australia.
authors.forename: J E
authors.initials: JE
authors.lastname: Calvert
authors.affiliation: School of Natural Sciences and Centre for Quantum Dynamics, Griffith University, Nathan QLD 4111, Australia.
authors.forename: S
authors.initials: S
authors.lastname: Goodall
authors.affiliation: School of Natural Sciences and Centre for Quantum Dynamics, Griffith University, Nathan QLD 4111, Australia.
authors.forename: X
authors.initials: X
authors.lastname: Wang
authors.affiliation: School of Natural Sciences and Centre for Quantum Dynamics, Griffith University, Nathan QLD 4111, Australia.
authors.forename: Han
authors.initials: H
authors.lastname: Xu
authors.affiliation: School of Natural Sciences and Centre for Quantum Dynamics, Griffith University, Nathan QLD 4111, Australia.
authors.forename: A J
authors.initials: AJ
authors.lastname: Palmer
authors.affiliation: School of Natural Sciences and Centre for Quantum Dynamics, Griffith University, Nathan QLD 4111, Australia.
authors.forename: D
authors.initials: D
authors.lastname: Kielpinski
authors.affiliation: School of Natural Sciences and Centre for Quantum Dynamics, Griffith University, Nathan QLD 4111, Australia.
authors.forename: I V
authors.initials: IV
authors.lastname: Litvinyuk
authors.affiliation: School of Natural Sciences and Centre for Quantum Dynamics, Griffith University, Nathan QLD 4111, Australia.
authors.forename: R T
authors.initials: RT
authors.lastname: Sang