14 October 1997 High-resolution x-ray spectroscopy of hollow atoms created in plasma heated by subpicosecond laser radiation
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Abstract
The investigations of ultrashort (0.4 - 0.6 ps) laser pulse radiation interaction with solid targets have been carried out. The Trident subpicosecond laser system was used for plasma creation. The X-ray plasma emission was investigated with the help of high-resolution spectrographs with spherically bent micra crystals. It is shown that when high contrast ultrashort laser pulses were used for plasma heating its emission spectra could not be explained in terms of commonly used theoretical models and transitions in so called `hollow atoms' must be taken into account for adequate description of plasma radiation.
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Anatoly Ya. Faenov, Joseph Abdallah, R. E. H. Clark, J. Cohen, Randall P. Johnson, George A. Kyrala, A. I. Magunov, Tatiana A. Pikuz, Igor Yu. Skobelev, Mark D. Wilke, "High-resolution x-ray spectroscopy of hollow atoms created in plasma heated by subpicosecond laser radiation", Proc. SPIE 3157, Applications of X Rays Generated from Lasers and Other Bright Sources, (14 October 1997); doi: 10.1117/12.283991; https://doi.org/10.1117/12.283991
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KEYWORDS
Plasma

Picosecond phenomena

Ions

Mirrors

X-rays

Pulsed laser operation

Chemical species

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