Düsseldorf 2007 – scientific programme

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A: Fachverband Atomphysik

A 23: Poster II - Interaction with strong or short laser pulses

A 23.5: Poster

Thursday, March 22, 2007, 16:30–18:30, Poster B

Laser-driven bound dynamics in multiply charged hydrogen-like ions — •Henrik G. Hetzheim, Guido R. Mocken, and Christoph H. Keitel — Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany

The interaction of relativistically strong electromagnetic fields with highly charged ions via multiphoton coupling [1,2] gives rise to a large variety of quantum phenomena. Here the laser-ion interaction for resonant multiphoton transitions in hydrogen-like highly charged ions is investigated. In particular the fine structure of the energy levels is taken into account by solving the Dirac equation in 2D numerically. In addition the radiation spectrum of the non-tunneling harmonics [3] is calculated for identifying resonantly driven transitions. The role of relativistic effects is discussed.

[1] C. H. Keitel, Contemporary Physics, 42, 353–363 (2001).

[2] S. X. Hu and C. H. Keitel, Phys. Rev. A 63, 053402 (2001).

[3] S. X. Hu, A. F. Starace, W. Becker, W. Sandner and D. B. Milošević, J. Phys. B: At. Mol. Opt. Phys. 35, 627–650 (2002).