ON THE MANIFESTATION OF TWO-PHOTON RESONANCES UNDER THREE-PHOTON IONIZATION OF SAMARIUM ATOM

被引：0
|
作者：
Gomonai, A. I. [1 ]
Plekan, O. I. [1 ]
机构：
[1] Acad Nat Sci Ukraine, Inst Electron Phys, 21,Universytetska Str, UA-88017 Uzhgorod, Ukraine
来源：
UKRAINIAN JOURNAL OF PHYSICS | 2005年 / 50卷 / 10期
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中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Possible reasons for a change of the resonance structure of the two-photon resonantly enhanced three-photon ionization spectra of a Sm atom in relatively weak fields (epsilon < 6 x 10(5) V cm(-1)) are considered. With a variation in the laser field strength, a considerable redistribution of the amplitudes of resonance maxima is observed. The main reason for this phenomenon is shown to be related to the different conditions of the ionization process saturation for the transitions differing in their probabilities and the initial level populations.
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页码：1117 / 1124
页数：8
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