3-PHOTON IONIZATION CROSS-SECTION CALCULATIONS OF BE

被引：19

作者：

TANG, X ^{[1
]}

BACHAU, H ^{[1
]}

机构：

[1] UNIV BORDEAUX 1,COLLIS ATOM LAB,F-33405 TALENCE,FRANCE

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1993年 / 26卷 / 01期

关键词：

D O I：

10.1088/0953-4075/26/1/007

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Three-photon perturbative photoionization cross sections from the ground state of beryllium have been calculated employing B-spline basis functions. Two-photon ionization cross sections are also calculated and compared to other L2 basis set calculations. Various approximations for the 1s2 core are discussed, calculations are performed in velocity and length gauges including electron correlations.

引用

收藏

页码：75 / 83

页数：9

相关论文

共 14 条

[1] FESHBACH-MODEL POTENTIAL APPROACH FOR THE STUDY OF RESONANT AND BOUND-STATES OF BE-LIKE IONS [J].

BACHAU, H ;

GALAN, P ;

MARTIN, F .

PHYSICAL REVIEW A, 1990, 41 (07) :3534-3544

[2] DISCRETIZATION TECHNIQUES APPLIED TO THE STUDY OF 2-PHOTON IONIZATION IN SYSTEMS WITH 2 ACTIVE ELECTRONS [J].

BACHAU, H ;

LAMBROPOULOS, P ;

TANG, X .

PHYSICAL REVIEW A, 1991, 44 (07) :4516-4520

[3]

Bashkin S., 1975, ATOMIC ENERGY LEVELS

[4] ENERGY-LEVELS AND THE OSCILLATOR-STRENGTHS OF THE BE ATOM DETERMINED BY A CONFIGURATION-INTERACTION CALCULATION WITH A FINITE BASIS SET FROM B-SPLINES [J].

CHANG, TN .

PHYSICAL REVIEW A, 1989, 39 (10) :4946-4955

[5] PHOTOIONIZATION OF 2-ELECTRON ATOMS USING A NONVARIATIONAL CONFIGURATION-INTERACTION APPROACH WITH DISCRETIZED FINITE BASIS [J].

CHANG, TN ;

TANG, X .

PHYSICAL REVIEW A, 1991, 44 (01) :232-238

[6] COMPUTATION OF 2ND-ORDER MANY-BODY CORRECTIONS IN RELATIVISTIC ATOMIC SYSTEMS [J].

JOHNSON, WR ;

SAPIRSTEIN, J .

PHYSICAL REVIEW LETTERS, 1986, 57 (09) :1126-1129

[7] FINITE BASIS-SETS FOR THE DIRAC-EQUATION CONSTRUCTED FROM B-SPLINES [J].

JOHNSON, WR ;

BLUNDELL, SA ;

SAPIRSTEIN, J .

PHYSICAL REVIEW A, 1988, 37 (02) :307-315

[8]

Karule E., 1991, ADV ATOM MOL OPT PHY, V27, P265, DOI DOI 10.1016/S1049-250X(08)60153-6

[9] TOPICS ON MULTIPHOTON PROCESSES IN ATOMS [J].

LAMBROPOULOS, P .

ADVANCES IN ATOMIC AND MOLECULAR PHYSICS, 1976, 12 :87-164

[10] 2-PHOTON TRANSITION-PROBABILITIES AND PHOTOIONISATION CROSS-SECTION CALCULATIONS OF BE [J].

MOCCIA, R ;

SPIZZO, P .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1985, 18 (17) :3555-3568