Channel switching in above-threshold ionization of xenon

被引：82

作者：

Schyja, V ^{[1
]}

Lang, T ^{[1
]}

Helm, H ^{[1
]}

机构：

[1] Univ Freiburg, Dept Mol & Opt Phys, D-79104 Freiburg, Germany

来源：

PHYSICAL REVIEW A | 1998年 / 57卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.57.3692

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The intensity dependence of the angular and energy distributions of photoelectrons is used to map the effect of channel closing in short-pulse, multiphoton ionization of xenon. At 800 nm, we observe the nine-photon channel to close at approximate to 3 x 10(13) W/cm(2) and the dominant ionization path to switch from (8 + 1)-photon resonant ionization via f-type Rydberg states to (9 + 1)-photon resonant ionization via g-type Rydberg states. Very low-energy electrons are observed prior to reaching the channel closing intensity, indicative of a contribution of nonresonant ionization.

引用

页码：3692 / 3697

页数：6

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