期刊
PHYSICAL REVIEW A
卷 85, 期 5, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.85.053424
关键词
-
资金
- Marie Curie program ATTOFEL (ITN)
- European Research Council (ALMA)
- Laserlab-Europe II
- Swedish Foundation for Strategic Research
- Swedish Research Council
- Knut and Alice Wallenberg Foundation
- COST Action [CM0702 (CUSPFEL)]
- [ANR-09-BLAN-0031-01 ATTO-WAVE]
We present experimental measurements and theoretical calculations of photoionization time delays from the 3s and 3p shells in Ar in the photon energy range of 32-42 eV. The experimental measurements are performed by interferometry using attosecond pulse trains and the infrared laser used for their generation. The theoretical approach includes intershell correlation effects between the 3s and 3p shells within the framework of the random-phase approximation with exchange. The connection between single-photon ionization and the two-color two-photon ionization process used in the measurement is established using the recently developed asymptotic approximation for the complex transition amplitudes of laser-assisted photoionization. We compare and discuss the theoretical and experimental results, especially in the region where strong intershell correlations in the 3s -> kp channel lead to an induced Cooper minimum in the 3s ionization cross section.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据