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This article is cited in 1 scientific paper (total in 1 paper)
Interaction of laser radiation with matter. Laser plasma
Characteristics of plasma heating by short-wavelength excimer laser radiation
A. Ya. Faenova, A. I. Magunova, T. A. Pikuza, I. Yu. Skobeleva, S. A. Pikuzb, S. Bollantic, P. Di Lazzaroc, N. Lizic, F. Florac, T. Letardic, L. Palladinod, A. Realed, A. Scafatie, A. Grillif, D. Batanig, A. Maurig, A. Osterheldh, W. H. Goldsteinh a Federal State Unitary Enterprise (FSUE) "National Research Institute for Physicotechnical and Radio Engineering Measurements", Mendeleevo, Moscow region
b P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow
c ENEA Centro Ricerche di Frascati, Frascati (Roma), Italy
d University of L’Aquila, Italy
e Laboratorio di Fisica, Istituto Superiore di Sanita, Rome, Italy
f Instituto Nazionale di Fisica Nucleare, Frascati, Italy
g University of Milan, Italy
h Lawrence Livermore National Laboratory, USA
Abstract:
Various x-ray spectroscopic methods were used to investigate a plasma generated by the interaction of short-wavelength excimer laser radiation pulses (12 ns, 0.308 μm, 4 × 1012 W cm–2) with flat targets. A comparison of the profiles and intensities of a number of observed spectral lines of the H-like, He-like, and Li-like sodium, magnesium, and aluminium ions with the results of the reported calculations made it possible to determine the spatial distributions of the laser plasma parameters up to distances of ~0.4 mm from the target surface. These parameters were compared with the predictions of a simple theoretical model of the absorption of short-wavelength radiation in a plasma. This showed that the absorption of such radiation (with the intensities used in this investigation) involved inverse bremsstrahlung in regions with an electron density much lower than the critical value.
Received: 01.01.1996
Citation:
A. Ya. Faenov, A. I. Magunov, T. A. Pikuz, I. Yu. Skobelev, S. A. Pikuz, S. Bollanti, P. Di Lazzaro, N. Lizi, F. Flora, T. Letardi, L. Palladino, A. Reale, A. Scafati, A. Grilli, D. Batani, A. Mauri, A. Osterheld, W. H. Goldstein, “Characteristics of plasma heating by short-wavelength excimer laser radiation”, Kvantovaya Elektronika, 23:8 (1996), 719–724 [Quantum Electron., 26:8 (1996), 700–705]
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https://www.mathnet.ru/eng/qe759 https://www.mathnet.ru/eng/qe/v23/i8/p719
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