Scattering and Filamentation of Electromagnetic Waves by kinetic Drift-Alfvén Waves

Abstract

The parametric interaction between a high frequency EM pump wave propagating in arbitrary direction and a kinetic drift-Alfvén wave in a weakly inhomogeneous low-β plasma is studied. A general nonlinear dispersion relation describing this parametric interaction is derived. Analytic expressions for threshold pump fields and growth rates, for scattering and filamentation of EM waves by kinetic Alfvén waves, drift waves and drift-Alfvén drift-Alfvén waves, are obtained. Possible applications of these parametric instabilities to laser produced plasmas and ionospheric plasmas are discussed

Stimulated scattering of electromagnetic waves by magnetosonic modes in a plasma

“…The theory leading to (1) has also been generalized to include various aspects on wave propagation in magnetized plasmas (e.g. Yu, Shukla & Spatschek 1974;Bujarbarua, Sen & Kaw 1974, 1976Manheimer & Ott 1974;Lee 1975;Larsson & Stenflo 1976;Yu & Shukla 1976;Kaw 1976;Stenflo & Larsson 1977;Karttunen & Salomaa 1977;Johnston, Kaufman & Johnston 1978;Grebogi & Liu 1980;Stenflo 1981;Chou & Tsai 1981;Willett & Bilikmen 1981;Rahman et al 1981;96 L. Stenflo Shivamoggi 1982;Papadopoulos, Sharma & Tripathi 1982;Lee & Kuo 1983;Saxena 1983;Barr et al 1984;Shukla, Yu & El-Nadi 1984;Murtaza & Shukla 1984;Kasymov et al 1985) with applications to the heating of magnetically confined plasmas (e.g. Porkolab 1978) as well as to ionospheric heating problems (e.g.…”