Picosecond X-Ray Laser Interferometry of Dense Plasmas

作     者：R. F. Smith J. Dunn J. Nilsen V. N. Shlyaptsev S. Moon J. Filevich J. J. Rocca M. C. Marconi J. R. Hunter T. W. Barbee, Jr. 

作者机构：Lawrence Livermore National Laboratory Livermore California 94551 Department of Applied Science University of California Davis-Livermore Livermore California 94551 Department of Electrical and Computer Engineering Colorado State University Fort Collins Colorado 80523 Department of Physics University of Buenos Aires Buenos Aires Argentina 

出 版 物：《Physical Review Letters》 (Phys Rev Lett)

年 卷 期：2002年第89卷第6期

页      面：065004-065004页

核心收录：

学科分类：07[理学] 0702[理学-物理学] 

基　　金：Institute for Laser Science and Applications, (DE-FG03-98DP00208, W-7405-Eng-48) University of California Lawrence Livermore National Laboratory U.S. Department of Energy, USDOE 

主　　题：.refraction electron-density Picosecond Laser Interferometry short wavelength 

摘      要：We present the first results from picosecond interferometry of dense laser-produced plasmas using a soft x-ray laser. The picosecond duration and short wavelength of the 14.7 nm Ni-like Pd laser mitigates effects associated with motion blurring and refraction through millimeter-scale plasmas. This enables direct measurement of the electron-density profile to within 10 μm of the target surface. A series of high-quality two-dimensional (2D) density measurements provide unambiguous characterization of the time evolution in a fast-evolving plasma suitable for validation of existing 1D and 2D hydrodynamic codes.