8 July 1993 Analysis of neon soft x-ray spectra from short-pulse laser-produced plasmas
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Proceedings Volume 1860, Short-Pulse High-Intensity Lasers and Applications II; (1993) https://doi.org/10.1117/12.147576
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States
Abstract
We report preliminary results from the analysis of streaked soft x-ray neon spectra obtained from the interaction of a picosecond Nd:glass laser with a gas jet target. In these experiments streaked spectra show prompt harmonic emission followed by longer time duration soft x-ray line emission. The majority of the line emission observed was found to originate from Li- and Be-like Ne and the major transitions in the observed spectra have been identified. Li-like emission lines were observed to decay faster in time than Be-like transitions, suggesting that recombination is taking place. Line ratios of n equals 4 - 2 and n equals 3 - 2 transitions supported the view that these lines were optically thin and thick, respectively. The time history of Li-like Ne 2p-4d and 2p-3d lines is in good agreement with a simple adiabatic expansion model coupled to a time dependent collisional-radiative code. Further x-ray spectroscopic analysis is underway which is aimed at diagnosing plasma conditions and assessing the potential of this recombining neon plasma as a quasi-steady-state recombination x-ray laser medium.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Amber C. Abare, Amber C. Abare, Christopher J. Keane, Christopher J. Keane, John K. Crane, John K. Crane, Luiz Barroca Da Silva, Luiz Barroca Da Silva, Richard W. Lee, Richard W. Lee, Michael D. Perry, Michael D. Perry, Roger W. Falcone, Roger W. Falcone, } "Analysis of neon soft x-ray spectra from short-pulse laser-produced plasmas", Proc. SPIE 1860, Short-Pulse High-Intensity Lasers and Applications II, (8 July 1993); doi: 10.1117/12.147576; https://doi.org/10.1117/12.147576
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