Angular anisotropy parameters and recoil-ion momentum distribution in two-photon double ionization of helium

A. S. Kheifets; I. A. Ivanov; Igor Bray

doi:10.1103/PhysRevA.76.025402

Angular anisotropy parameters and recoil-ion momentum distribution in two-photon double ionization of helium

A. S. Kheifets^*
, I. A. Ivanov
, Igor Bray

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

We present convergent-close-coupling (CCC) calculations of the angular anisotropy parameters β2, β4 and the recoil ion momentum distribution dσ dp in two-photon double ionization (TPDI) of helium. In a stark contrast to single-photon double ionization (SPDI), where the β2 parameter varies widely changing the angular distribution from isotropic to nearly dipole for slow and fast photoelectrons, respectively, the β parameters for TPDI show very little change. The angular distribution of the recoil ion is fairly isotropic in TPDI as opposed to a strong alignment with the polarization of light in SPDI.

Original language	English
Article number	025402
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	76
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevA.76.025402
Publication status	Published - 28 Aug 2007

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title = "Angular anisotropy parameters and recoil-ion momentum distribution in two-photon double ionization of helium",

abstract = "We present convergent-close-coupling (CCC) calculations of the angular anisotropy parameters β2, β4 and the recoil ion momentum distribution dσ dp in two-photon double ionization (TPDI) of helium. In a stark contrast to single-photon double ionization (SPDI), where the β2 parameter varies widely changing the angular distribution from isotropic to nearly dipole for slow and fast photoelectrons, respectively, the β parameters for TPDI show very little change. The angular distribution of the recoil ion is fairly isotropic in TPDI as opposed to a strong alignment with the polarization of light in SPDI.",

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language = "English",

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T1 - Angular anisotropy parameters and recoil-ion momentum distribution in two-photon double ionization of helium

AU - Kheifets, A. S.

AU - Ivanov, I. A.

AU - Bray, Igor

PY - 2007/8/28

Y1 - 2007/8/28

N2 - We present convergent-close-coupling (CCC) calculations of the angular anisotropy parameters β2, β4 and the recoil ion momentum distribution dσ dp in two-photon double ionization (TPDI) of helium. In a stark contrast to single-photon double ionization (SPDI), where the β2 parameter varies widely changing the angular distribution from isotropic to nearly dipole for slow and fast photoelectrons, respectively, the β parameters for TPDI show very little change. The angular distribution of the recoil ion is fairly isotropic in TPDI as opposed to a strong alignment with the polarization of light in SPDI.

AB - We present convergent-close-coupling (CCC) calculations of the angular anisotropy parameters β2, β4 and the recoil ion momentum distribution dσ dp in two-photon double ionization (TPDI) of helium. In a stark contrast to single-photon double ionization (SPDI), where the β2 parameter varies widely changing the angular distribution from isotropic to nearly dipole for slow and fast photoelectrons, respectively, the β parameters for TPDI show very little change. The angular distribution of the recoil ion is fairly isotropic in TPDI as opposed to a strong alignment with the polarization of light in SPDI.

UR - https://www.scopus.com/pages/publications/34548276464

U2 - 10.1103/PhysRevA.76.025402

DO - 10.1103/PhysRevA.76.025402

M3 - Article

SN - 1050-2947

VL - 76

JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

IS - 2

M1 - 025402

ER -

Angular anisotropy parameters and recoil-ion momentum distribution in two-photon double ionization of helium

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