NONRESONANT ABOVE-THRESHOLD IONIZATION BY CIRCULARLY POLARIZED SUBPICOSECOND PULSES

被引：36

作者：

BUCKSBAUM, PH

VANWOERKOM, LD

FREEMAN, RR

SCHUMACHER, DW

机构：

[1] AT and T Bell Laboratories, Murray Hill

来源：

PHYSICAL REVIEW A | 1990年 / 41卷 / 07期

关键词：

D O I：

10.1103/PhysRevA.41.4119

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Recent experiments show that above-threshold ionization (ATI) with intense linearly polarized light occurs via Stark-shifted bound-state resonances. Under identical conditions, we find that ATI with subpicosecond circularly polarized light is nonresonant. Unlike longer-pulse experiments, these spectra directly show the ionization rate versus intensity, and can therefore test ATI theories without deconvolving the inhomogeneous laser focus. Keldysh-Faisal-Reiss calculations do not agree with these new experimental results. © 1990 The American Physical Society.

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页码：4119 / 4121

页数：3

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