ELECTRIC-FIELD EFFECTS ON BARIUM AUTOIONIZING SPECTRA

被引：20

作者：

ARMSTRONG, DJ ^{[1
]}

GREENE, CH ^{[1
]}

WOOD, RP ^{[1
]}

COOPER, J ^{[1
]}

机构：

[1] UNIV COLORADO, DEPT PHYS, BOULDER, CO 80309 USA

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 70卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.70.2379

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Stark spectra for atomic barium in the autoionizing region below the 5d3/2 ionization threshold are studied by photoionization of the laser-excited 5d6p 3D1(0) bound level, in a combined experimental and theoretical study. The electric field dramatically increases the complexity of the resonance pattern beyond that of the already complex zero-field spectrum. A quantum defect and R-matrix calculation describes 86 relevant zero-field channels. A frame transformation couples these channels together nonperturbatively in the presence of the field, reproducing most of the observations.

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页码：2379 / 2382

页数：4

相关论文

共 24 条

[1] PHOTOIONIZATION OF THE 5D6P 3D1 STATE OF BARIUM [J].

ARMSTRONG, DJ ;

WOOD, RP ;

GREENE, CH .

PHYSICAL REVIEW A, 1993, 47 (03) :1981-1988

[2] DIELECTRONIC RECOMBINATION - A CROSSED-BEAMS OBSERVATION AND MEASUREMENT OF CROSS-SECTION [J].

BELIC, DS ;

DUNN, GH ;

MORGAN, TJ ;

MUELLER, DW ;

TIMMER, C .

PHYSICAL REVIEW LETTERS, 1983, 50 (05) :339-342

[3] STARK-EFFECT OF NON-HYDROGENIC RYDBERG SPECTRA [J].

FANO, U .

PHYSICAL REVIEW A, 1981, 24 (01) :619-622

[4] SOLITON-LIKE STRUCTURE IN THE PARAMETRIC DISTORTIONS OF BOUNDED-SYSTEM ENERGY-SPECTRA [J].

GASPARD, P ;

RICE, SA ;

NAKAMURA, K .

PHYSICAL REVIEW LETTERS, 1989, 63 (09) :930-933

[5] SPIN-ORBIT EFFECTS IN THE HEAVY ALKALINE-EARTH ATOMS [J].

GREENE, CH ;

AYMAR, M .

PHYSICAL REVIEW A, 1991, 44 (03) :1773-1790

[6]

HARMIN DA, 1990, NATO ADV SCI I B-PHY, V212, P61

[7] ANALYTICAL STUDY OF QUASIDISCRETE STARK LEVELS IN RYDBERG ATOMS [J].

HARMIN, DA .

PHYSICAL REVIEW A, 1984, 30 (05) :2413-2428

[8] DIAMAGNETIC RYDBERG ATOM - CONFRONTATION OF CALCULATED AND OBSERVED SPECTRA [J].

IU, CH ;

WELCH, GR ;

KASH, MM ;

KLEPPNER, D ;

DELANDE, D ;

GAY, JC .

PHYSICAL REVIEW LETTERS, 1991, 66 (02) :145-148

[9] ENHANCEMENT OF DIELECTRONIC RECOMBINATION BY PLASMA ELECTRIC MICROFIELDS [J].

JACOBS, VL ;

DAVIS, J ;

KEPPLE, PC .

PHYSICAL REVIEW LETTERS, 1976, 37 (21) :1390-1393

[10] PROPERTIES OF RYDBERG AUTO-IONIZING STATES IN ELECTRIC-FIELDS [J].

JACOBS, VL ;

DAVIS, J .

PHYSICAL REVIEW A, 1979, 19 (02) :776-786