I have taught at UC Berkeley in the Physics Department since 1983, and was Chair from 1995 to 2000. I received my BA (physics) and PhD (EE) from Princeton and Stanford. Since 2006 I have been the director of the Advanced Light Source synchrotron at Lawrence Berkeley National Laboratory, a national user facility that supports over 2000 visiting scientists from around the world every year in a broad range of science, including energy, biology, physics, and chemistry, as well as technology of interest to industries ranging from pharmaceutical to semiconductor companies. My other activities include working with Berkeley's Lawrence Hall of Science on K-12 education issues, oversight committees for the nation’s national laboratories (LLNL and LANL), and advisory boards for several European laboratories. I serve as a board member of the Lafayette Library and Learning Center, a new and unique model for community libraries.
James Cryan | Post-Doc | LBNL
I am interested in ultrafast photo-induced dynamics in atomic and molecular systems. I am particularly interested in the dynamics of the excited states of these systems, and how energy transfer takes place inside a molecule. My interest in excited state dynamics has lead to the development of new tools (light sources, detectors, etc.) and techniques (new spectroscopies,molecular alignment, time-resolved techniques, etc.) in order to better understand the physics involved.
Currently we are exploiting strong-field driven high harmonic generation (HHG) to produce a vacuum/extreme ultraviolet (VUV/XUV) light source for time-resolved studies. We use a VUV pulse to excite a molecular system and follow the dynamics with photoionization spectroscopy using a second XUV pulse. The resulting photofragments are collected using a velocity map imaging spectrometer which give fragment kinetic energy and angular distribution information.
Dominik Kraus | Post-Doc | LLNL
My research interest is trying to understand the microscopic structure and corresponding equation of state properties of warm and hot dense matter with pressures in the Mbar up to the Gbar regime. This is comparable to the interiors of planets and stars as well as transient conditions in contemporary inertial confinement fusion concepts. I participate in experimental campaigns at the National Ignition Facility, the Linac Coherent Light Source, the OMEGA Laser facility and other smaller laser laboratories. My focus is especially on the complicated behavior of carbon and plastic in this very interesting regime of matter.
Benjamin Barbrel | Post-Doc | LBNL
Matter brought to tens of thousands of degrees while maintained at or above solid density has attracted physicists attention because the properties of these so-called warm dense plasmas are found to play a crucial role in the description of the internal structure of some astrophysical bodies such as the giant gaz planets in our solar system, or in the modeling of laser-matter interaction processes like the ones encountered in the ongoing endeavor to reach controlled nuclear fusion by inertial confinement.
Their position in parameter space at the interface of solids, liquids and high temperature plasmas, explains why modeling these exotic states and simulating their properties remains a challenge.
My work revolves around conceiving and conducting experiments that involve creating and probing warm dense plasmas in the laboratory, using optical lasers and x-ray sources (the LCLS x-ray free electron laser, the ultrafast dynamics beamline at ALS). I developed a special interest in the technique of inelastic x-ray scattering measurement of plasma properties.
Kyle Engelhorn | Graduate Student Researcher | LBNL
I am broadly interested in ultrafast techniques used create and understand Warm Dense Matter (WDM) and Hot Dense Matter (HDM). These regimes are relevant to astrophysical phenomena and many material processes and present unique challenges in both experimentally and computationally. I am involved in experiments at the ALS and LCLS which aim to build the fundamental understanding and experimental capability in the WDM and HDM regimes.
Elio Champenois | Graduate Student Researcher | LBNL
My research interests include ultrafast science, nonlinear optics, and chemical dynamics. I am working on developing and using a bright High Harmonic Generation source to conduct UV pump, UV probe studies of femtosecond dynamics in molecules.
Alison Saunders | Graduate Student Researcher | LBNL
My research interests consist of all aspects of free electron lasers, including the electron beam, the x-rays produced, and the many applications of the x-rays.
FORMER GROUP MEMBERS
Professor, Gwangiu Institute of Science and Technology, Gwangju, South Korea
Scientist, Lawrence Livermore National Lab, Livermore, CA
Legislative Fellow, Senate Energy and Natural Resources Committee, Washington, DC
Scientist, SLAC National Accelerator Lab, Stanford, CA
Scientist, Advanced Light Source, Lawrence Berkeley National Lab, Berkeley, CA
Manager, System Studies Department, Sandia National Lab, Livermore, CA
Tech Lead/Manager, Skybox Imaging, Mountain View, CA
Vice President, Strategic Projects - Infineon Technologies, Bavaria, Germany
Professor, Department of Physics, Lund University, Lund, Sweden
Hae Ja Lee
Scientist, LCLS, SLAC National Accelerator Lab, Stanford, CA
Professor, Material Science and Engineering, Stanford University, Stanford, CA
Investigator, Laboratory of Single Molecule Biophysics, NHLBI, Bethesda, MD
Postdoc, Materials Sciences Division, Lawrence Berkeley National Lab, Berkeley, CA
Physicist and Radiation Safety Officer, VisuRay, Stavanger Area, Norway
Scientist, Lawrence Livermore National Lab, Livermore, CA
Formerly - Scientist, Lawrence Livermore National Laboratory, Livermore, CA
Research Staff, Mitsubishi Electric Research Laboratory, Cambridge, MA
Professor, Physics Department, Santa Clara University, Santa Clara, CA