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BibTeX file of [Doumy11] [show it without abstract]

@article{Doumy11, author={Gilles Doumy and C. Roedig and Sang-Kil Son and C. I. Blaga and A. D. DiChiara and Robin Santra and N. Berrah and C. Bostedt and J. D. Bozek and P. H. Bucksbaum and J. P. Cryan and L. Fang and S. Ghimire and J. M. Glownia and M. Hoener and E. P. Kanter and B. Kr{\"a}ssig and M. Kuebel and M. Messerschmidt and G. G. Paulus and D. A. Reis and N. Rohringer and L. Young and P. Agostini and L. F. DiMauro}, title={Nonlinear atomic response to intense ultrashort x rays}, journal={Phys. Rev. Lett.}, volume={106}, pages={083002}, year={2011}, keywords={Ne; nonlinear; x-ray; LCLS; experiment; XATOM; XFEL; CFEL; DESY;}, url={https://doi.org/10.1103/PhysRevLett.106.083002}, doi={10.1103/PhysRevLett.106.083002}, abstract={The nonlinear absorption mechanisms of neon atoms to intense, femtosecond kilovolt x rays are investigated. The production of {Ne}$^{9+}$ is observed at x-ray frequencies below the {Ne}$^{8+}$, 1$s^2$ absorption edge and demonstrates a clear quadratic dependence on fluence. Theoretical analysis shows that the production is a combination of the two-photon ionization of {Ne}$^{8+}$ ground state and a high-order sequential process involving single-photon production and ionization of transient excited states on a time scale faster than the Auger decay. We find that the nonlinear direct two-photon ionization cross section is orders of magnitude higher than expected from previous calculations.} }

Gilles Doumy, C. Roedig, Sang-Kil Son, C. I. Blaga, A. D. DiChiara, Robin Santra, N. Berrah, C. Bostedt, J. D. Bozek, P. H. Bucksbaum, J. P. Cryan, L. Fang, S. Ghimire, J. M. Glownia, M. Hoener, E. P. Kanter, B. Krässig, M. Kuebel, M. Messerschmidt, G. G. Paulus, D. A. Reis, N. Rohringer, L. Young, P. Agostini, and L. F. DiMauro, Nonlinear atomic response to intense ultrashort x rays, Phys. Rev. Lett. 106, 083002 (2011)

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[abstract]

doi:10.1103/PhysRevLett.106.083002

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