Three-photon ionization of lithium

被引：1
|
作者：
Pereira, MT
Serrao, JMP
机构：
[1] Univ Tecn Lisboa, Ctr Fis Mol, P-1100 Lisbon, Portugal
[2] Univ Beira Interior, Dept Fis, P-6200 Covilha, Portugal
来源：
PHYSICS LETTERS A | 1998年 / 242卷 / 4-5期
关键词：
D O I：
10.1016/S0375-9601(98)00214-X
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study three-photon ionization of neutral lithium, in the presence of a strong laser light intensity of up to 15 GW cm(-2), involving the absorption of three photons combined in such a way that first we have one-photon resonant plus two photon non-resonant ionization transitions, then the reverse case is studied. The resolvent operator formalism and projection operators are used in the calculations. An atomic central field model potential is used to generate orbital wavefunctions. We compare our calculations with previous calculations done by Chang and Poe [Phys. Rev. A 16 (1977) 606] for non-resonant three-photon ionization rates of lithium, with which we obtained a very good agreement. (C) 1998 Published by Elsevier Science B.V.
引用
收藏
页码：251 / 254
页数：4
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