K
Keith Jobe
Researcher at SLAC National Accelerator Laboratory
Publications - 46
Citations - 1311
Keith Jobe is an academic researcher from SLAC National Accelerator Laboratory. The author has contributed to research in topics: Particle accelerator & Laser. The author has an hindex of 17, co-authored 45 publications receiving 1126 citations. Previous affiliations of Keith Jobe include University College London & Stanford University.
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Journal ArticleDOI
High-Power Multimode X-Band RF Pulse Compression System for Future Linear Colliders
Sami Tantawi,Christopher Nantista,Valery Dolgashev,C. Pearson,Janice Nelson,Keith Jobe,Jose Chan,K.S. Fant,Josef Frisch,Dennis P. Atkinson +9 more
TL;DR: In this article, a multimode $X$-band rf pulse compression system suitable for a TeV-scale electron-positron linear collider such as the Next Linear Collider (NLC).
Journal ArticleDOI
Imaging CF3I conical intersection and photodissociation dynamics with ultrafast electron diffraction
Jie Yang,Xiaolei Zhu,Xiaolei Zhu,Thomas J. A. Wolf,Zheng Li,Zheng Li,Zheng Li,J. Pedro F. Nunes,Ryan Coffee,Ryan Coffee,James P. Cryan,Markus Gühr,Markus Gühr,Kareem Hegazy,Kareem Hegazy,Tony F. Heinz,Tony F. Heinz,Keith Jobe,Renkai Li,Xiaozhe Shen,Theodore Veccione,Stephen Weathersby,Kyle J. Wilkin,Charles Yoneda,Qiang Zheng,Todd J. Martínez,Todd J. Martínez,Martin Centurion,Xijie Wang +28 more
TL;DR: This work presents the simultaneous experimental characterization of one-photon and two- photon excitation channels in isolated CF3I molecules using ultrafast gas-phase electron diffraction and mapped out the real-space trajectories of a coherent nuclear wave packet, which bifurcates onto two potential energy surfaces when passing through a conical intersection.
Journal ArticleDOI
Diffractive Imaging of Coherent Nuclear Motion in Isolated Molecules.
Jie Yang,Markus Guehr,Markus Guehr,Xiaozhe Shen,Renkai Li,Theodore Vecchione,Ryan Coffee,Jeff Corbett,Alan Fry,Nick Hartmann,C. Hast,Kareem Hegazy,Keith Jobe,Igor Makasyuk,Joseph Robinson,Matthew S. Robinson,Sharon Vetter,Stephen Weathersby,Charles Yoneda,Xijie Wang,Martin Centurion +20 more
TL;DR: The motion of a vibrational wave packet in isolated iodine molecules is imaged using ultrafast electron diffraction with relativistic electrons to understand and control the outcome of photoinduced chemical reactions.
Journal ArticleDOI
Demonstration of the Echo-Enabled Harmonic Generation Technique for Short-Wavelength Seeded Free Electron Lasers
Dao Xiang,Eric R. Colby,M. Dunning,Sasha Gilevich,C. Hast,Keith Jobe,D. McCormick,J. Nelson,Tor Raubenheimer,K. Soong,Gennady Stupakov,Z. Szalata,D.R. Walz,Stephen Weathersby,M. Woodley,P-L. Pernet +15 more
TL;DR: The first experimental demonstration of the echo-enabled harmonic generation technique, which holds great promise for generation of high-power, fully coherent short-wavelength radiation, is reported.
Journal ArticleDOI
Diffractive imaging of a rotational wavepacket in nitrogen molecules with femtosecond megaelectronvolt electron pulses
Jie Yang,Markus Guehr,Theodore Vecchione,Matthew S. Robinson,Renkai Li,Nick Hartmann,Xiaozhe Shen,Ryan Coffee,Jeff Corbett,Alan Fry,Kelly J. Gaffney,Tais Gorkhover,C. Hast,Keith Jobe,Igor Makasyuk,Alexander H. Reid,Joseph Robinson,Sharon Vetter,Fenglin Wang,Stephen Weathersby,Charles Yoneda,Martin Centurion,Xijie Wang +22 more
TL;DR: A gas-phase electron diffraction experiment using megaelectronvolt electrons is reported, where the rotational wavepacket dynamics of nonadiabatically laser-aligned nitrogen molecules are captured and the angular distribution of the molecules changes from prolate to oblate (anti-aligned) in 300 fs.