Elusive enhanced ionization structure for H2+ in intense ultrashort laser pulses

被引：37

作者：

Ben-Itzhak, I. ^{[1
]}

Wang, P. Q. ^{[1
]}

Sayler, A. M. ^{[1
]}

Carnes, K. D. ^{[1
]}

Leonard, M. ^{[1
]}

Esry, B. D. ^{[1
]}

Alnaser, A. S. ^{[1
]}

Ulrich, B. ^{[1
]}

Tong, X. M. ^{[1
]}

Litvinyuk, I. V. ^{[1
]}

Maharjan, C. M. ^{[1
]}

Ranitovic, P. ^{[1
]}

Osipov, T. ^{[1
]}

Ghimire, S. ^{[1
]}

Chang, Z. ^{[1
]}

Cocke, C. L. ^{[1
]}

机构：

[1] Kansas State Univ, Dept Phys, JR Macdonald Lab, Manhattan, KS 66506 USA

来源：

PHYSICAL REVIEW A | 2008年 / 78卷 / 06期

关键词：

high-speed optical techniques; hydrogen ions; molecule-photon collisions; optical pumping; photodissociation; photoionisation; positive ions;

D O I：

10.1103/PhysRevA.78.063419

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Enhanced ionization of H-2+ in intense ultrashort laser pulses was measured using molecular dissociation imaging of an H-2+ beam and with a pump-probe technique using cold target recoil ion momentum spectroscopy on a D-2 target. Both measurements show a broad, single-peak distribution for enhanced ionization, in contrast to the double-peak structure predicted by "frozen" nuclei theory. This calculated double-peak structure is most likely washed out by nuclear motion and to a lesser extent by intensity averaging.

引用

页数：7

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