Energies and time-resolved spectroscopy of 10--2000-A emissions from laser plasmas produced by a picosecond laser
Various characteristics of x-ray emission from laser plasmas produced by a picosecond YAG laser (where YAG represents yttrium aluminum garnet) are investigated in the wide wavelength band ranging from 10 to 2000 A from the point of view that emitted radiation from laser plasmas is applied to many purposes, such as laser fusion, x-ray lasers, x-ray sources, and solid-state physics. In this wide wavelength band, extremely different dependences of x-ray energies on input laser energies are made clear. With a decrease of the wavelength, the slope of the dependences increases. Decay times of emitted x-rays from laser plasmas are approximately proportional to the wavelengths. Computational studies are also performed in the framework of a transient collisional radiative model in order to explain the experimental results.
- Research Organization:
- The Institute for Solid State Physics, The University of Tokyo, Minato-ku, Tokyo 106, Japan
- OSTI ID:
- 6009145
- Journal Information:
- Phys. Rev. A; (United States), Vol. 35:11
- Country of Publication:
- United States
- Language:
- English
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