Photo double ionization of He by circular and linear polarized single-photon absorption

被引：43

作者：

Achler, M

Mergel, V

Spielberger, L

Dörner, R

Azuma, Y

Schmidt-Böcking, H

机构：

[1] Goethe Univ Frankfurt, Inst Kernphys, D-60486 Frankfurt, Germany

[2] Univ Freiburg, Fak Phys, D-79104 Freiburg, Germany

[3] KEK, Photon Factory, IMSS, Tsukuba, Ibaraki 305, Japan

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2001年 / 34卷 / 06期

关键词：

D O I：

10.1088/0953-4075/34/6/301

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have measured absolute fully differential cross sections for photo double ionization of helium by circularly and linearly polarized light 20 eV above threshold. The data have been obtained by measuring in coincidence the momentum vector of the He2+ ion and one of the electrons, covering 4 pi solid angle for all particles. We give an overview over the momentum distribution in the three-body continuum and show fivefold differential cross sections. We find a swirl in the electron momentum space for double ionization by circularly polarized light. The present data supersede earlier data from our group.

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页码：965 / 981

页数：17

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