Search

Your search keyword '"Heimann, P.A."' showing total 25 results
Start Over Author "Heimann, P.A." Publisher escholarship, university of california
25 results on '"Heimann, P.A."'

1. Femtosecond Near Edge X-ray Absorption Measurement of the VO2 Phase Transition

Author

Cavalleri, A., Chong, H.H.W., Fourmaux, S., Glover, T.E., Heimann, P.A, Kieffer, J.C., Padmore, H.A., and Schoenlein, R.W.

Subjects
Materials science, Condensed matter physics, superconductivity and superfluidity, femtosecond x-ray correlated electron system vanadium ultrafast spectroscopy
Published
2004

2. Generation of femtosecond synchrotron pulses: Performance and characterization

Author

Schoenlein, R.W., Cavalleri, A., Chong, H.H.W., Glover, T.E., Heimann, P.A., Zholents, A.A., and Zolotorev, M.S.

Subjects
Particle accelerators, Materials science, femtosecond x-ray synchrotron time-resolved ultrafast
Abstract

Femtosecond synchrotron pulses of 13 MeV relative to the nominal 1.9 GeV beam energy. Femtosecond pulses are effectively isolated from the long-pulse background using the transverse dispersion of the storage ring in combination with an x-ray imaging optic and a pair of slits to achieve a signal/background ratio of ~;1.

Published
2003

3. Proposal to DOE Basic Energy Sciences: Ultrafast X-ray science facility at the Advanced Light Source

Author

Schoenlein, Robert W., Falcone, Roger W., Abela, R., Alivisatos, A.P., Belkacem, A., Berrah, N., Bozek, J., Bressler, C., Cavalleri, A., Chergui, M., Glover, T.E., Heimann, P.A., Hepburn, J., Larsson, J., Lee, R.W., McCusker, J., Padmore, H.A., Pattison, P., Pratt, S.T., Shank, C.V., Wark, J., Chang, Z., Robin, D.W., Schlueter, R.D., Zholents, A.A., and Zolotorev, M.S.

Subjects
Instrumentation -- other, Materials science, Condensed matter physics, superconductivity and superfluidity, femtosecond x-ray undulator beamline
Published
2001

5. Ultrafast x-ray science at the Advanced Light Source

Author

Schoenlein, R.W., Chin, A.H., Chong, H.H.W., Falcone, R.W., Glover, T.E., Heimann, P.A., Johnson, S.L., Lindenberg, A.M., Shank, C.V., Zholents, A.A., and Zolotorev, M.S.

Subjects
Instrumentation -- other, Materials science, Particle accelerators, femtosecond x-rays time-resolved dynamics synchrotron slice
Abstract

Our scientific understanding of the static or time-averaged structure of condensed matter on the atomic scale has been dramatically advanced by direct structural measurements using x-ray techniques and modern synchrotron sources. Of course the structure of condensed matter is not static, and to understanding the behavior of condensed matter at the most fundamental level requires structural measurements on the time scale on which atoms move. The evolution of condensed-matter structure, via the making and breaking of chemical bonds and the rearrangement of atoms, occurs on the fundamental time scale of a vibrational period, ~;100 fs. Atomic motion and structural dynamics on this time scale ultimately determine the course of phase transitions in solids, the kinetic pathways of chemical reactions, and even the efficiency and function of biological processes. The integration of x-ray measurement techniques, a high-brightness femtosecond x-ray source, femtosecond lasers, and stroboscopic pump-probe techniques will provide the unique capability to address fundamental scientific questions in solid-state physics, chemistry, AMO physics, and biology involving structural dynamics. In this paper, we review recent work in ultrafast x-ray science at the ALS including time-resolved diffraction measurements and efforts to develop dedicated beamlines for femtosecond x-ray experiments.

Published
2000

6. Femtosecond x-ray pulses from a synchrotron

Author

Schoenlein, R.W., Chong, H.H.W., Glover, T.E., Heimann, P.A., Shank, C.V., Zholents, A.A., and Zolotorev, M.S.

Subjects
Instrumentation -- other, Materials science, femtosecond x-ray synchrotron beamline structural dynamics
Abstract

An important frontier in ultrafast science is the application of femtosecond x-ray pulses to the study of structural dynamics in condensed matter. We show that femtosecond laser pulses can be used to generate high-brightness, tunable, femtosecond x-ray pulses from a synchrotron. Performance of existing and proposed femtosecond x-ray beamlines at the Advanced Light Source synchrotron are discussed.

Published
2000

23. The LBL 55-Meter Spherical Grating Monochromator at SSRL

Author

McKinney, W.R., Howells, M.R., Lauritzen, T., Chin, J., DiGennaro, R., Fong, E., Gath, W., Guigli, J., Hogrefe, H., Meneghetti, J., Plate, D., Heimann, P.A., Terminello, Louis J., Ji, Z., Shirley, D.A., and Senf, S.

Published
1989

Catalog

Books, media, physical & digital resources
See catalog results