APPEARANCE INTENSITIES FOR MULTIPLY-CHARGED IONS IN A STRONG LASER FIELD

被引：17
作者：
BREWCZYK, M
RZAZEWSKI, K
CLARK, CW
机构：
[1] POLISH ACAD SCI, CTR FIZ TEORET, PL-02668 WARSAW, POLAND
[2] COLL SCI WARSAW, WARSAW, POLAND
[3] US DEPT COMMERCE, NATL INST STAND & TECHNOL, TECHNOL ADM, DIV ELECTR & OPT PHYS, GAITHERSBURG, MD 20899 USA
来源：
PHYSICAL REVIEW A | 1995年 / 52卷 / 02期
关键词：
D O I：
10.1103/PhysRevA.52.1468
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study multiple ionization of atoms by a strong laser field using a time-dependent approach based on the Thomas-Fermi model. The evolution of the electron density under the influence of a transient, linearly polarized radiation field is determined by numerical solution of hydrodynamic equations on a two-dimensional grid. We find a threshold ''appearance intensity'' for a given charge state, i.e., the laser intensity at which such a charge state first appears, which is in reasonable agreement with experimental results for high charge states.
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收藏
页码：1468 / 1473
页数：6
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