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Observation of modulational instability in a multi-component plasma with negative ions

  • H. Bailung† (a1) and Y. Nakamura (a1)


The nonlinear evolution of ion-acoustic waves in a multi-component plasma with negative ions has been studied experimentally using a double-plasma device. At a critical concentration of negative ions the phase velocity of the ion- acoustic waves increases with the wave amplitude, and the wave has negative dispersion, which show that the wave satisfies Lighthill's condition. The initial small modulation in amplitude is found to grow spatially. The observed phenomena are compared with the relevant theory using the nonlinear Schrödinger equation. The fluid equations are integrated to confirm the validity of the nonlinear Schrödinger equation.



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Alexeff, I., Jones, W. D. & Montgomery, D. C. 1967 Phys. Rev. Lett. 19, 422.
Asano, N., Taniuti, T. & Yajima, N. 1969 J. Math. Phys. 10, 2020.
Cooney, J. L., Aossey, D. W., Williams, J. E., Gavin, M. T., Kim, H. S., Hsu, Y. C., Scheller, A. & Lonngren, K. E. 1993 Plasma Sources Sci. Technol. 2, 73.
Das, G. C. 1979 Plasma Phys. 21, 257.
Das, G. C. & Tagare, S. G. 1975 Plasma Phys. 17, 1025.
Doucet, H. J. 1970 Phys. Lett. 33A, 283.
Hasegawa, A. 1975 Plasma Instabilities and Nonlinear Effects. Springer.
Honzawa, T. & Hollenstein, C. H. 1981 Phys. Fluids 24, 1086.
Ikezi, H., Schwarzenegger, K., Simons, A. L., Ohsawa, Y. & Kamimura, T. 1978 Phys. Fluids 21, 239.
Kakutani, T. & Sugimoto, N. 1979 17, 1917.
Ludwig, G. O., Ferreira, J. L. & Nakamura, Y. 1984 Phys. Rev. Lett. 52, 275.
Morales, G. J. & O'Neil, T. M. 1972 Phys. Rev. Lett. 28, 417.
Nakamura, Y. 1987 J. Plasma Phys. 38, 461.
Nakamura, Y., Ferreira, J. L. & Ludwig, G. O. 1985 J. Plasma Phys. 33, 237.
Nakamura, Y. & Tsukabayashi, I. 1985 J. Plasma Phys. 34, 401.
Ohe, K. & Hashimoto, M. 1984 Phys. Fluids 27, 1863.
Ohe, K. & Hashimoto, M. 1985 J. Appl. Phys. 58, 2975.
Ostrovosky, A. 1967 Soviet Phys. JETP 24, 797.
Saito, M., Watanabe, S. & Tanaka, H. 1984 J. Phys. Soc. Japan 53, 2304.
Shimizu, K. & Ichikawa, Y. H. 1972 J. Phys. Soc. Japan 33, 789.
Song, B., D'Angelo, N. & Merlino, R. L. 1990 Phys. Fluids. B 3, 284.
Sugai, H., Hatakeyama, R., Saeki, K. & Inutake, M. 1976 Phys. Fluids 19, 1753.
Sugai, H. & Märk, E. 1975 Phys. Rev. Lett. 34, 127.
Tai, K., Hasegawa, A. & Tomita, A. 1986 Phys. Rev. Lett. 56, 135.
Taniuti, T. & Yajima, N. 1969 J. Math. Phys. 10, 1369.
Tran, M. Q. & Coquerand, S. 1976 Phys. Rev. A14, 2301.
Tsukabayashi, I. & Nakamura, Y. 1989 Proceedings of International Conference on Plasma Physics, New Delhi, vol. 1, p. 769.
Whitham, G. B. 1965 J. Fluid Mech. 22, 273.
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Observation of modulational instability in a multi-component plasma with negative ions

  • H. Bailung† (a1) and Y. Nakamura (a1)


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