Momentum-imaging investigations of the dissociation of D2+ and the isomerization of acetylene to vinylidene by intense short laser pulses

被引：41

作者：

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

Litvinyuk, I.

Osipov, T.

Ulrich, B.

Landers, A.

Wells, E.

Maharjan, C. M.

Ranitovic, P.

Bochareva, I.

Ray, D.

Cocke, C. L.

机构：

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

[2] Amer Univ Sharjah, Dept Phys, Sharjah, U Arab Emirates

[3] Auburn Univ, Dept Phys, Auburn, AL 36849 USA

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2006年 / 39卷 / 13期

关键词：

D O I：

10.1088/0953-4075/39/13/S21

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present momentum images of the ionic products from the ionization of D-2 and C2H2 by short laser pulses. For D-2, we use a pump-probe approach to investigate the dependence of the enhanced ionization on the internuclear distance. Evidence for two ( not well separated) regions of enhancement is found near internuclear distances of 6 and 10 au. In the case of acetylene, we report clear evidence for the production of both acetylene and vinylidene dications with kinetic energy releases similar to those reported earlier by core electron removal. We also find very different angular distributions for the fragments in the two channels, consistent with a finite time for the isomerization.

引用

页码：S485 / S492

页数：8

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