1. Department of Physics, University of Nevada Reno, Reno, Nevada 89557, USA
2. SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
3. Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada
4. Lawrence Livermore National Laboratory, Livermore, California 94550, USA
5. Department of Applied Physics, Stanford University, Stanford, California 94305, USA
6. Center for High Energy Density Science, Department of Physics, The University of Texas at Austin, Austin, Texas 78712, USA
7. Institute of Laser Engineering, Osaka University, Osaka 565-0871, Japan