@article{cef5cff5478241c48acf84ed8d3b4cc0,
title = "Observation of the parametric-modulational instability between the drift-wave fluctuation and azimuthally symmetric sheared radial electric field oscillation in a cylindrical laboratory plasma",
abstract = "Observation of the parametric-modulational interaction between the drift-wave fluctuation (7-8 kHz) and azimuthally symmetric sheared radial electric field structure (∼0.4 kHz) in a cylindrical laboratory plasma is presented. Oscillation of the sheared radial electric field is synchronized at modulations of the radial wave number and Reynolds stress per mass density of the drift-wave spectrum. Bispectral analysis at the location where the sheared radial electric field has finite radial wave numbers shows that nonlinear energy transfers from the drift wave to the sheared radial electric field occur. Nonlocal energy transfers of fluctuations via {"}channel of the azimuthally symmetric sheared radial electric field{"} in spectral space as well as real space are discovered.",
author = "Yoshihiko Nagashima and Itoh, {Sanae I.} and Shunjiro Shinohara and Masayuki Fukao and Akihide Fujisawa and Kenichiro Terasaka and Yoshinobu Kawai and Tynan, {George R.} and Diamond, {Patrick H.} and Masatoshi Yagi and Shigeru Inagaki and Takuma Yamada and Kimitaka Itoh",
note = "Funding Information: We are grateful to Professor T. Ohkawa and Professor F. Wagner for useful discussions. This work was partially supported by Grant-in-Aids for SPR (Grant No. 16002005) (Itoh project) and for YS (B) (Grant No. 18760637) of MEXT, Japan, and by the collaborations of NIFS (Grant No. NIFS07KOAP017), RIAM of Kyushu University, and The University of Tokyo. We also appreciate the experimental supports of Mr. T. Nishizima, Mr. M. Kawagughi, and Dr. K. Kamataki.",
year = "2009",
doi = "10.1063/1.3078075",
language = "English",
volume = "16",
journal = "Physics of Plasmas",
issn = "1070-664X",
publisher = "American Institute of Physics Publising LLC",
number = "2",
}