Characterization of electrostatic shock in laser-produced optically-thin plasma flows using optical diagnostics

T. Morita*, Y. Sakawa, Y. Kuramitsu, S. Dono, H. Aoki, H. Tanji, J. N. Waugh, C. D. Gregory, M. Koenig, N. C. Woolsey, H. Takabe

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We present a method for evaluating the properties of electrostatic shock in laser-produced plasmas by using optical diagnostics. A shock is formed by a collimated jet in counter-streaming plasmas in nearly collisionless condition, showing the steepening of the transition width in time. In the present experiment, a streaked optical pyrometry was applied to evaluate the electron density and temperatures in the upstream and downstream regions of the shock so that the shock conditions are satisfied, by assuming thermal bremsstrahlung emission in optically thin plasmas. The derived electron densities are nearly consistent with those estimated from interferometry.

Original languageEnglish
Article number072701
Pages (from-to)1-8
Number of pages8
JournalPhysics of Plasmas
Issue number7
Early online date27 Jun 2017
Publication statusE-pub ahead of print - 27 Jun 2017

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