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

Journal Article · Thu Jun 15 00:00:00 EDT 2006 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.73.0· OSTI ID:20787507

Hertlein, M P; Adaniya, H; Amini, J; Feinberg, B; Prior, M H; Belkacem, A ^[1]; Bressler, C; Kaiser, M ^[2]; Neumann, N ^[1]

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1. Lawrence Berkeley National Laboratory, Berkeley, California (United States)
2. Laboratoire de Spectroscopie Ultrarapide, Ecole Polytechnique Federale de Lausanne, CH-1015 Lausanne (Switzerland)

With a femtosecond laser pulse we rapidly ionize potassium atoms (K{sup 0}) in the gas phase, generating potassium ions (K{sup +}), 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{sup +} over K{sup 0} for that transition.

• OSTI ID: 20787507
• Journal Information: Physical Review. A, Vol. 73, Issue 6; Other Information: DOI: 10.1103/PhysRevA.73.062715; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
BINDING ENERGY
ELECTRONS
ENERGY LEVELS
EV RANGE
HARD X RADIATION
INNER-SHELL IONIZATION
LASER RADIATION
OSCILLATOR STRENGTHS
PHOTOIONIZATION
PHOTON-ATOM COLLISIONS
POTASSIUM
POTASSIUM IONS
PULSES
VALENCE