Minima in low-energy above-threshold-ionization spectra induced by electronic structure

被引:5
作者
Telnov, Dmitry A. [1 ]
Chu, Shih-, I [2 ,3 ,4 ]
机构
[1] St Petersburg State Univ, Dept Phys, 7-9 Univ Skaya Naberezhnaya, St Petersburg 199034, Russia
[2] Natl Taiwan Univ, Ctr Quantum Sci & Engn, Taipei 10617, Taiwan
[3] Natl Taiwan Univ, Ctr Adv Study Theoret Sci, Dept Phys, Taipei 10617, Taiwan
[4] Univ Kansas, Dept Chem, Lawrence, KS 66045 USA
关键词
LASER FIELDS; PHOTOIONIZATION; DYNAMICS; XENON;
D O I
10.1103/PhysRevA.100.043423
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A structure with local minima is found in the low-energy part of the above-threshold-ionization electron spectrum for several one-electron atomic and molecular targets initially in excited electronic states. The ionization regime is neither tunneling nor pure multiphoton with the Keldysh parameter slightly larger than unity. The effect is nonperturbative and depends on the frequency and intensity of the driving field. Although the ionization process is generally nonresonant, our analysis reveals an important role of intermediate bound states in formation of the structure.
引用
收藏
页数:8
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