Inner-shell ionization of potassium atoms ionized by a femtosecond laser

被引：11

作者：

Hertlein, M. P. ^{[1
]}

Adaniya, H.

Amini, J.

Bressler, C.

Feinberg, B.

Kaiser, M.

Neumann, N.

Prior, M. H.

Belkacem, A.

机构：

[1] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[2] Ecole Polytech Fed Lausanne, Lab Spect Ultrarapide, CH-1015 Lausanne, Switzerland

[3] Goethe Univ Frankfurt, Inst Kernphys, D-60486 Frankfurt, Germany

来源：

PHYSICAL REVIEW A | 2006年 / 73卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.73.062715

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

With a femtosecond laser pulse we rapidly ionize potassium atoms (K-0) in the gas phase, generating potassium ions (K+), and monitor the altered energy-level scheme with a subsequent hard x-ray pulse. Removal of the potassium 4s valence electron increases the binding energies of both the valence and the 1s core levels, and induces an ultrafast change of the 1s-4p x-ray transition energy by about 2.8 eV. We simultaneously observe a 50% increase in oscillator strength of K+ over K-0 for that transition.

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页数：4

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