J
John D. Bozek
Researcher at SLAC National Accelerator Laboratory
Publications - 294
Citations - 16291
John D. Bozek is an academic researcher from SLAC National Accelerator Laboratory. The author has contributed to research in topics: Photoionization & Ionization. The author has an hindex of 55, co-authored 282 publications receiving 14804 citations. Previous affiliations of John D. Bozek include Université Paris-Saclay & Lawrence Berkeley National Laboratory.
Papers
More filters
Journal ArticleDOI
Ultra-efficient ionization of heavy atoms by intense X-ray free-electron laser pulses
Benedikt Rudek,Sang-Kil Son,Lutz Foucar,Sascha W. Epp,Benjamin Erk,Robert Hartmann,M. Adolph,Robert Andritschke,Andrew Aquila,Nora Berrah,Christoph Bostedt,John D. Bozek,Nicola Coppola,Frank Filsinger,H. Gorke,Tais Gorkhover,Heinz Graafsma,Lars Gumprecht,Andreas Hartmann,Günter Hauser,Sven Herrmann,Helmut Hirsemann,Peter Holl,André Hömke,Loic Journel,Christian M. Kaiser,Nils Kimmel,Faton Krasniqi,Kai Uwe Kuhnel,Michael Matysek,Marc Messerschmidt,Danilo Mießner,Thomas Möller,Robert Moshammer,Kiyonobu Nagaya,Björn Nilsson,Guillaume Potdevin,Daniel Pietschner,Christian Reich,Daniela Rupp,Gerhard Schaller,Ilme Schlichting,Carlo Schmidt,Florian Schopper,Sebastian Schorb,Sebastian Schorb,Claus Dieter Schröter,Joachim Schulz,Marc Simon,Heike Soltau,Lothar Strüder,Kiyoshi Ueda,Georg Weidenspointner,Robin Santra,Joachim Ullrich,Joachim Ullrich,Artem Rudenko,Artem Rudenko,Daniel Rolles +58 more
TL;DR: In this article, the authors reported an unprecedented 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.
Journal ArticleDOI
Shapes and vorticities of superfluid helium nanodroplets
Luis F. Gomez,Ken R. Ferguson,James P. Cryan,Camila Bacellar,Camila Bacellar,Rico Mayro P. Tanyag,Curtis F. Jones,Sebastian Schorb,Denis Anielski,Ali Belkacem,Charles Bernando,Rebecca Boll,John D. Bozek,Sebastian Carron,Gang Chen,Tjark Delmas,Lars Englert,Sascha W. Epp,Benjamin Erk,Lutz Foucar,Robert Hartmann,Alexander Hexemer,Martin Huth,Justin J. Kwok,Stephen R. Leone,Stephen R. Leone,Jonathan Ma,Jonathan Ma,Filipe R. N. C. Maia,Erik Malmerberg,Stefano Marchesini,Stefano Marchesini,Daniel M. Neumark,Daniel M. Neumark,Billy K. Poon,James S. Prell,Daniel Rolles,Benedikt Rudek,Artem Rudenko,Martin Seifrid,Katrin R. Siefermann,Felix Sturm,Michele Swiggers,Joachim Ullrich,Fabian Weise,Petrus H. Zwart,Christoph Bostedt,Oliver Gessner,Andrey F. Vilesov +48 more
TL;DR: Using x-ray diffraction to deduce the shape of individual rotating droplets and image the resulting vortex patterns, Gomez et al. found that superfluid droplets can host a surprising number of vortices and can rotate faster than normal droplets without disintegrating.
Journal ArticleDOI
Nonlinear Atomic Response to Intense Ultrashort X Rays
Gilles Doumy,Gilles Doumy,C. Roedig,Sang-Kil Son,Cosmin I. Blaga,Anthony DiChiara,Robin Santra,Nora Berrah,Christoph Bostedt,John D. Bozek,Philip H. Bucksbaum,James P. Cryan,Li Fang,Shambhu Ghimire,James M. Glownia,M. Hoener,Elliot P. Kanter,Bertold Krässig,M. Kuebel,Marc Messerschmidt,Gerhard G. Paulus,David A. Reis,Nina Rohringer,Linda Young,Pierre Agostini,Louis F. DiMauro +25 more
TL;DR: The nonlinear absorption mechanisms of neon atoms to intense, femtosecond kilovolt x rays are investigated and the nonlinear direct two-photon ionization cross section is orders of magnitude higher than expected from previous calculations.
Journal ArticleDOI
Time-Resolved Pump-Probe Experiments at the LCLS
James M. Glownia,James P. Cryan,Jakob Andreasson,Ali Belkacem,Nora Berrah,Cosmin I. Blaga,Christoph Bostedt,John D. Bozek,Louis F. DiMauro,Li Fang,Josef Frisch,Oliver Gessner,Markus Gühr,Janos Hajdu,M. P. Hertlein,M. Hoener,Gang Huang,O. Kornilov,J. P. Marangos,Anne Marie March,Brian K. McFarland,Hamed Merdji,Vladimir S. Petrovic,Chandra Raman,Dipanwita Ray,David A. Reis,Mariano Trigo,James L. White,William E. White,Russell Wilcox,Linda Young,Ryan Coffee,Philip H. Bucksbaum +32 more
TL;DR: This analysis shows that the relative arrival time of the Ti:Sapphire laser and the x-ray pulses had a distribution with a standard deviation of approximately 120 fs, which suggests that simple technical improvements could reduce the jitter to better than 50 fs.
Journal ArticleDOI
Imaging charge transfer in iodomethane upon x-ray photoabsorption
Benjamin Erk,Rebecca Boll,Sebastian Trippel,Denis Anielski,Lutz Foucar,Benedikt Rudek,Benedikt Rudek,Sascha W. Epp,Ryan Coffee,Sebastian Carron,Sebastian Schorb,Ken R. Ferguson,Michele Swiggers,John D. Bozek,Marc Simon,Marc Simon,Tatiana Marchenko,Tatiana Marchenko,Jochen Küpper,Ilme Schlichting,Joachim Ullrich,Joachim Ullrich,Christoph Bostedt,Daniel Rolles,Artem Rudenko,Artem Rudenko +25 more
TL;DR: The electron transfer between the methyl and iodine fragments is mapped as a function of their interatomic separation set by the NIR–x-ray delay and a realistic estimate of its effective spatial range can be obtained from a classical over-the-barrier model.