Nonsequential two-photon absorption from the K shell in solid zirconium

Shambhu Ghimire; Matthias Fuchs; Jerry Hastings; Sven C. Herrmann; Yuichi Inubushi; Jack Pines; Sharon Shwartz; Makina Yabashi; David A. Reis

doi:10.1103/PhysRevA.94.043418

Nonsequential two-photon absorption from the K shell in solid zirconium

Shambhu Ghimire, Matthias Fuchs, Jerry Hastings, Sven C. Herrmann, Yuichi Inubushi, Jack Pines, Sharon Shwartz, Makina Yabashi, David A. Reis

Department of Physics

Research output: Contribution to journal › Article › peer-review

41 Scopus citations

Abstract

We report the observation of nonsequential two-photon absorption from the K shell of solid Zr (atomic number Z=40) using intense x-ray pulses from the Spring-8 Angstrom Compact Free-Electron Laser (SACLA). We determine the generalized nonlinear two-photon absorption cross section at the two-photon threshold in the range of 3.9-57 ×10-60cm4s bounded by the estimated uncertainty in the absolute intensity. The lower limit is consistent with the prediction of 3.1 ×10-60cm4s from the nonresonant Z-6 scaling for hydrogenic ions in the nonrelativistic, dipole limit.

Original language	English
Article number	043418
Journal	Physical Review A
Volume	94
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevA.94.043418
State	Published - 21 Oct 2016

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© 2016 American Physical Society.

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abstract = "We report the observation of nonsequential two-photon absorption from the K shell of solid Zr (atomic number Z=40) using intense x-ray pulses from the Spring-8 Angstrom Compact Free-Electron Laser (SACLA). We determine the generalized nonlinear two-photon absorption cross section at the two-photon threshold in the range of 3.9-57 ×10-60cm4s bounded by the estimated uncertainty in the absolute intensity. The lower limit is consistent with the prediction of 3.1 ×10-60cm4s from the nonresonant Z-6 scaling for hydrogenic ions in the nonrelativistic, dipole limit.",

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AU - Ghimire, Shambhu

AU - Fuchs, Matthias

AU - Hastings, Jerry

AU - Herrmann, Sven C.

AU - Inubushi, Yuichi

AU - Pines, Jack

AU - Shwartz, Sharon

AU - Yabashi, Makina

AU - Reis, David A.

PY - 2016/10/21

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N2 - We report the observation of nonsequential two-photon absorption from the K shell of solid Zr (atomic number Z=40) using intense x-ray pulses from the Spring-8 Angstrom Compact Free-Electron Laser (SACLA). We determine the generalized nonlinear two-photon absorption cross section at the two-photon threshold in the range of 3.9-57 ×10-60cm4s bounded by the estimated uncertainty in the absolute intensity. The lower limit is consistent with the prediction of 3.1 ×10-60cm4s from the nonresonant Z-6 scaling for hydrogenic ions in the nonrelativistic, dipole limit.

AB - We report the observation of nonsequential two-photon absorption from the K shell of solid Zr (atomic number Z=40) using intense x-ray pulses from the Spring-8 Angstrom Compact Free-Electron Laser (SACLA). We determine the generalized nonlinear two-photon absorption cross section at the two-photon threshold in the range of 3.9-57 ×10-60cm4s bounded by the estimated uncertainty in the absolute intensity. The lower limit is consistent with the prediction of 3.1 ×10-60cm4s from the nonresonant Z-6 scaling for hydrogenic ions in the nonrelativistic, dipole limit.

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Nonsequential two-photon absorption from the K shell in solid zirconium

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