DISCRETIZATION TECHNIQUES APPLIED TO THE STUDY OF MULTIPHOTON EXCITATION OF RESONANCES IN HELIUM

被引：35

作者：

CORMIER, E

BACHAU, H

ZHANG, J

机构：

[1] Laboratoire des Collisions Atomique, Université Bordeaux I, Talence, 33405

[2] Max-Plank-Institut fiir Quantenoptik, Ludwig-Prandtl-Strasse 10, Garching, D-8046

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1993年 / 26卷 / 23期

关键词：

D O I：

10.1088/0953-4075/26/23/016

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Two-photon ionization of helium is investigated by using a discretization technique. Perturbative cross sections are calculated with a L2 basis set (B-splines), the efficiency of such an approach is discussed in the context of above threshold ionization (ATI). We propose a parametrization of the cross sections in the region of resonances. The role of the correlations is discussed in a P - Q Feshbach projection treatment.

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页码：4449 / 4463

页数：15

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