Extraction of nonlinear waveform in turbulent plasma

F. Kin, K. Itoh, A. Fujisawa, Y. Kosuga, Makoto Sasaki, T. Yamada, Inagaki Shigeru, Sanae Itoh, T. Kobayashi, Y. Nagashima, N. Kasuya, H. Arakawa, K. Yamasaki, K. Hasamada

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Streamers and their mediator have been known to exist in linear cylindrical plasmas [Yamada et al., Nat. Phys. 4, 721 (2008)]. Conditional averaging is applied to extract the nonlinear characteristics of a mediator, which has been simply treated as a linear wave. This paper reports that a mediator should have higher harmonic components generated by self-couplings, and the envelope of a streamer should be generated with not only fundamental but also higher harmonic components of the mediator. Moreover, both the mediator and the envelope of the streamer have common features with solitary waves, i.e., the height should increase inversely as the square of their localization width.

Original languageEnglish
Article number062304
JournalPhysics of Plasmas
Issue number6
Publication statusPublished - Jun 1 2018

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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