title: Diffractive Imaging of Coherent Nuclear Motion in Isolated Molecules.
abstract: Observing the motion of the nuclear wave packets during a molecular reaction, in both space and time, is crucial for understanding and controlling the outcome of photoinduced chemical reactions. We have imaged the motion of a vibrational wave packet in isolated iodine molecules using ultrafast electron diffraction with relativistic electrons. The time-varying interatomic distance was measured with a precision 0.07 Å and temporal resolution of 230 fs full width at half maximum. The method is not only sensitive to the position but also the shape of the nuclear wave packet.
authors: University of Nebraska-Lincoln, 855 N 16th Street, Lincoln, Nebraska 68588, USA.
authors: Jie
authors: J
authors: Yang
authors: PULSE, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.|Physics and Astronomy, Potsdam University, 14476 Potsdam, Germany.
authors: Markus
authors: M
authors: Guehr
authors: SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
authors: Xiaozhe
authors: X
authors: Shen
authors: SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
authors: Renkai
authors: R
authors: Li
authors: SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
authors: Theodore
authors: T
authors: Vecchione
authors: SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
authors: Ryan
authors: R
authors: Coffee
authors: SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
authors: Jeff
authors: J
authors: Corbett
authors: SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
authors: Alan
authors: A
authors: Fry
authors: SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
authors: Nick
authors: N
authors: Hartmann
authors: SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
authors: Carsten
authors: C
authors: Hast
authors: SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
authors: Kareem
authors: K
authors: Hegazy
authors: SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
authors: Keith
authors: K
authors: Jobe
authors: SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
authors: Igor
authors: I
authors: Makasyuk
authors: SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
authors: Joseph
authors: J
authors: Robinson
authors: University of Nebraska-Lincoln, 855 N 16th Street, Lincoln, Nebraska 68588, USA.
authors: Matthew S
authors: MS
authors: Robinson
authors: SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
authors: Sharon
authors: S
authors: Vetter
authors: SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
authors: Stephen
authors: S
authors: Weathersby
authors: SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
authors: Charles
authors: C
authors: Yoneda
authors: SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
authors: Xijie
authors: X
authors: Wang
authors: University of Nebraska-Lincoln, 855 N 16th Street, Lincoln, Nebraska 68588, USA.
authors: Martin
authors: M
authors: Centurion