Temporal separation of H2 double-ionization channels using intense ultrashort 10-fs laser pulses

被引：14
|
作者：
Saugout, S [1 ]
Cornaggia, C [1 ]
机构：
[1] CEA Saclay, Direct Sci Mat, Serv Photons Atomes & Mol, F-91191 Gif Sur Yvette, France
来源：
PHYSICAL REVIEW A | 2006年 / 73卷 / 04期
关键词：
D O I：
10.1103/PhysRevA.73.041406
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Double ionization channels of H-2 are separated in the time domain using ultrashort 10-fs laser pulses in the 10(13)-10(15) W cm(-2) intensity range. Charge resonance enhanced ionization does not contribute anymore to double ionization because the H-2 (+) ion does not have enough time to stretch up to the critical internuclear distance. Using a pump-probe excitation scheme, this process is shown to be very sensitive for the detection of pre- and post-pulses situated at a few tens of femtoseconds from the maximum pulse envelope.
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页数：4
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