Direct two-XUV-photon double ionization in xenon

被引：9
|
作者：
Tzallas, P. [1 ]
Skantzakis, E. [1 ,2 ]
Charalambidis, D. [1 ,2 ]
机构：
[1] Fdn Res & Technol Hellas, Inst Elect Struct & Laser, GR-71110 Iraklion, Crete, Greece
[2] Univ Crete, Dept Phys, GR-71003 Iraklion, Crete, Greece
来源：
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2012年 / 45卷 / 07期
关键词：
D O I：
10.1088/0953-4075/45/7/074007
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report the observation of the direct two-XUV-photon double ionization of xenon by energetic coherent XUV continuum radiation. The spectrum of the XUV continuum spans from similar to 15 to similar to 23 eV, for which the two-photon sequential double ionization channel is partially open. The two-XUV-photon process is exploited in a second-order autocorrelation measurement of the temporal width of the continuum radiation, revealing energetic XUV pulses at the border between the atto- and femto-second scales.
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页数：5
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