Kamila Stefańska - Publications - Bridge of Knowledge

mgr inż. Kamila Stefańska

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Year 2010

Two-photon double ionization of atoms in attosecond x-ray radiation fields
Publication
- O. Chuluunbaatar
- H. Bachau
- Y. V. Popov
- B. Piraux
- K. Stefańska
- PHYSICAL REVIEW A - Year 2010
We consider two-photon double ionization of helium with 100, 200, and 400 eV excess energy for the two ejected electrons, corresponding to photon energies of 89.5, 139.5, and 239.5 eV, respectively. We focus on the case of ultrashort pulses (two oscillations of the field) and develop an approach to calculate the two-photon transition matrix elements within the lowest order of the time-dependent perturbation theory. One of the...

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