Download or read book Absolute and Convective Instabilities of Two Plasmon Decay in an Inhomogeneous Magnetized Plasma Supported by the National Natural Science Foundation of China Under Grant Nos 10990214 and 10775450 and the Ministry of Science and Technology of China Under Grant No 2013GB112002 written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract : Three-wave resonant parametric decay instability of extraordinary wave decay into two upper hybrid waves in an inhomogeneous plasma is studied theoretically. Analytical expressions of the local absolute growth rate, convective amplification factor and threshold intensity are obtained. The calculated results show that the effects of magnetic field and ky (ky is the component of the wavenumber of upper hybrid wave perpendicular to pump wave k0 ) on the growth rate, amplification factor and threshold intensity are extremely dependent on their strength. The absolute growth rate and convective amplification factor increase with the plasma density while the threshold decreases. Moreover, the expression indicates that the inhomogeneity scale length of density and linear damping will reduce the convective amplification factor.

Download or read book Absolute Two Plasmon Parametric Decay of Obliquely Incident Electromagnetic Waves in an Inhomogeneous Plasma written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The parametric decay of an electromagnetic wave into two electron plasma waves is considered. The electromagnetic wave is obliquely incident on the density gradient. The resulting analysis shows that the threshold for absolute instability decreases as the angle of incidence of the electromagnetic wave relative to the density gradient approaches 90°. The importance of this result to laser fusion is discussed.