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  Ultra-efficient ionization of heavy atoms by intense X-ray free-electron laser pulses

Rudek, B., Son, S. K., Foucar, L., Epp, S. W., Erk, B., Hartmann, R., et al. (2012). Ultra-efficient ionization of heavy atoms by intense X-ray free-electron laser pulses. Nature Photonics, 6, 858-865. doi:10.1038/nphoton.2012.261.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-156E-5 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-1572-A
Genre: Journal Article

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 Creators:
Rudek, B., Author
Son, S. K., Author
Foucar, L., Author
Epp, S. W., Author
Erk, B., Author
Hartmann, R., Author
Adolph, M., Author
Andritschke, R., Author
Aquila, A., Author
Berrah, N., Author
Bostedt, C., Author
Bozek, J., Author
Coppola, N., Author
Filsinger, F., Author
Gorke, H., Author
Gorkhover, T., Author
Graafsma, H., Author
Gumprecht, L., Author
Hartmann, A., Author
Hauser, G., Author
Herrmann, S., AuthorHirsemann, H., AuthorHoll, P., AuthorHömke, A., AuthorJournel, L., AuthorKaiser, C., AuthorKimmel, N., AuthorKrasniqi, F., AuthorKühnel, K. U., AuthorMatysek, M., AuthorMesserschmidt, M., AuthorMiesner, D., AuthorMöller, T., AuthorMoshammer, R., AuthorNagaya, K., AuthorNilsson, B., AuthorPotdevin, G., AuthorPietschner, D., AuthorReich, C., AuthorRupp, D., AuthorSchaller, G., AuthorSchlichting, I., AuthorSchmidt, C., AuthorSchopper, F., AuthorSchorb, S., AuthorSchröter, C. D., AuthorSchulz, J., AuthorSimon, M., AuthorSoltau, H., AuthorStrüder, L., AuthorUeda, K., AuthorWeidenspointner, G., AuthorSantra, R., AuthorUllrich, J., AuthorRudenko, A., AuthorRolles, D.1, Author               more..
Affiliations:
1Research Group of Structural Dynamics of (Bio)Chemical Systems, MPI for Biophysical Chemistry, Max Planck Society, ou_578564              

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 Abstract: X-ray free-electron lasers provide unique opportunities for exploring ultrafast dynamics and for imaging the structures of complex systems. Understanding the response of individual atoms to intense X-rays is essential for most free-electron laser applications. First experiments have shown that, for light atoms, the dominant interaction mechanism is ionization by sequential electron ejection, where the highest charge state produced is defined by the last ionic state that can be ionized with one photon. Here, we report an unprecedentedly high degree of ionization of xenon atoms by 1.5 keV free-electron laser pulses to charge states with ionization energies far exceeding the photon energy. Comparing ion charge-state distributions and fluorescence spectra with state-of-the-art calculations, we find that these surprisingly high charge states are created via excitation of transient resonances in highly charged ions, and predict resonance enhanced absorption to be a general phenomenon in the interaction of intense X-rays with systems containing high-Z constituents.

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Language(s): eng - English
 Dates: 2012-11-122012
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1038/nphoton.2012.261
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Title: Nature Photonics
Source Genre: Journal
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Pages: - Volume / Issue: 6 Sequence Number: - Start / End Page: 858 - 865 Identifier: -