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  Resonance fluorescence in ultrafast and intense x-ray free-electron-laser pulses

Cavaletto, S., Buth, C., Harman, Z., Kanter, E. P., Southworth, S. H., Young, L., et al. (2012). Resonance fluorescence in ultrafast and intense x-ray free-electron-laser pulses. Physical Review A, 86(3): 033402, pp. 1-15. doi:10.1103/PhysRevA.86.033402.

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1205.4918 (Preprint), 895KB
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 Urheber:
Cavaletto, Stefano1, Autor           
Buth, C.2, Autor
Harman, Z.1, 3, Autor           
Kanter, E. P.2, Autor
Southworth, S. H.2, Autor
Young, L.2, Autor
Keitel, C. H.1, Autor
Affiliations:
1Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society,, ou_904546              
2Argonne National Laboratory, Argonne, Illinois 60439, USA, ou_persistent22              
3ExtreMe Matter Institute (EMMI), Planckstrasse 1, 64291 Darmstadt, Germany, ou_904546              

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Schlagwörter: Physics, Atomic Physics, physics.atom-ph
 Zusammenfassung: The spectrum of resonance fluorescence is calculated for a two-level system excited by an intense, ultrashort x-ray pulse made available for instance by free-electron lasers such as the Linac Coherent Light Source. We allow for inner-shell hole decay widths and destruction of the system by further photoionization. This two-level description is employed to model neon cations strongly driven by x rays tuned to the 1s 2p-1 --> 1s-1 2p transition at 848 eV; the x rays induce Rabi oscillations which are so fast that they compete with Ne 1s-hole decay. We predict resonance fluorescence spectra for two different scenarios: first, chaotic pulses based on the self-amplified spontaneous emission principle, like those presently generated at x-ray free-electron-laser facilities and, second, Gaussian pulses which will become available in the foreseeable future with self-seeding techniques. As an example of the exciting opportunities derived from the use of seeding methods, we predict, in spite of above obstacles, the possibility to distinguish at x-ray frequencies a clear signature of Rabi flopping in the spectrum of resonance fluorescence.

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 Datum: 2012-05-222012-09-112012-09-04
 Publikationsstatus: Online veröffentlicht
 Seiten: 17 pages, 13 figures
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Titel: Physical Review A
  Andere : Phys. Rev. A
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: New York, NY : Published by the American Physical Society through the American Institute of Physics
Seiten: - Band / Heft: 86 (3) Artikelnummer: 033402 Start- / Endseite: 1 - 15 Identifikator: ISSN: 1050-2947
CoNE: https://pure.mpg.de/cone/journals/resource/954925225012_2