Dynamic and geometric laser-induced alignment of molecules in intense laser fields

被引:147
作者
Posthumus, JH [1 ]
Plumridge, J
Thomas, MK
Codling, K
Frasinski, LJ
Langley, AJ
Taday, PF
机构
[1] Univ Reading, JJ Thomson Phys Lab, Reading RG6 6AF, Berks, England
[2] Rutherford Appleton Lab, Cent Laser Facil, Didcot OX11 0QX, Oxon, England
关键词
D O I
10.1088/0953-4075/31/13/002
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The angular distribution of the ionic fragments from multiphoton dissociative ionization of diatomic molecules shows a pronounced anisotropy. Calculations within the field-ionization, Coulomb explosion model show that the experimental I-2 results (pulses of 50 fs at an intensity of similar to 10(14) W cm(-2)) can be explained without invoking reorientation of the molecular axis. The fragments of the lighter H-2 and N-2 molecules, on the other hand, show clear signs of being forced into alignment.
引用
收藏
页码:L553 / L562
页数:10
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