X-ray two-photon absorption competing against single and sequential multiphoton processes

Double Core-Hole Creation by Sequential Attosecond Photoionization

(2013) Kenji Tamasaku et al.   PHYSICAL REVIEW LETTERS

Deep Inner-Shell Multiphoton Ionization by Intense X-Ray Free-Electron Laser Pulses

(2013) H. Fukuzawa et al.   PHYSICAL REVIEW LETTERS

Pulse energy measurement at the hard x-ray laser in Japan

(2012) M. Kato et al.   APPLIED PHYSICS LETTERS

X-ray and optical wave mixing

(2012) T. E. Glover et al.   NATURE

A compact X-ray free-electron laser emitting in the sub-ångström region

(2012) Tetsuya Ishikawa et al.   Nature Photonics

Demonstration of self-seeding in a hard-X-ray free-electron laser

(2012) J. Amann et al.   Nature Photonics

Enhanced nonlinear response of Ne8+to intense ultrafast x rays

(2012) Arina Sytcheva et al.   PHYSICAL REVIEW A

Impact of ultrafast electronic damage in single-particle x-ray imaging experiments

(2012) U. Lorenz et al.   PHYSICAL REVIEW E

Visualizing the local optical response to extreme-ultraviolet radiation with a resolution of λ/380

(2011) Kenji Tamasaku et al.   Nature Physics

Impact of hollow-atom formation on coherent x-ray scattering at high intensity

(2011) Sang-Kil Son et al.   PHYSICAL REVIEW A

Nonlinear Atomic Response to Intense Ultrashort X Rays

(2011) G. Doumy et al.   PHYSICAL REVIEW LETTERS

Multiwavelength Anomalous Diffraction at High X-Ray Intensity

(2011) Sang-Kil Son et al.   PHYSICAL REVIEW LETTERS

First lasing and operation of an ångstrom-wavelength free-electron laser

(2010) P. Emma et al.   Nature Photonics