Title :
High performance Ni-Like soft-x-ray lasers by longitudinal-Pumping and transient collisional excitation
Author :
Ozaki, T. ; Yamamoto, K. ; Li, R. ; Kuroda, H.
Author_Institution :
Institute for Solid State Physics, University of Tokyo, 7-22-1 Roppongi, Minato-ku, 106-8666, Japan
Abstract :
We experimentally investigate the interaction of a preformed plasma with a high intensity 2-psec Nd:Glass laser pulse entering from the longitudinal direction. Observations of the transverse intensity profile of the longitudinal beam are found to be well reproduced by simple hydrodynamic and ray-tracing calculations, if a nonuniform line-focus is taken into account. Observations of visible emission from the plasma reveal the presence of a bright jetlike structure, which extends over an unusually long length of several millimeters. This phenomenon is found to favor plasma produced from middle- to high-Z material.
Keywords :
Charge coupled devices; Lenses; Materials; laser plasma; transient collisional excitation; x-ray laser;
Conference_Titel :
High-Power Particle Beams, 2000 13th International Conference on
Conference_Location :
Nagaoka, Japan
