| Nonlinear Evolution of Driven Electron Plasma Oscillations in Inhomogeneous Plasmas |
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| 作者姓名： | SHENG Zhengming XU Zhizhan YU Wei MA Jinxiu |
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| 作者单位： | SHENG Zhengming; XU Zhizhan; YU Wei; MA Jinxiu(Shanghai Institute of Optics and Fins Mechanics，Academia Sinica，P.O.Box800-211，Shanghai 201800，China)(CCAST(World Laboratory)，P. O. Box 8730，Beijing 100080，China) |
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| 摘 要： | ＮｏｎｌｉｎｅａｒＥｖｏｌｕｔｉｏｎｏｆＤｒｉｖｅｎＥｌｅｃｔｒｏｎＰｌａｓｍａＯｓｃｉｌｌａｔｉｏｎｓｉｎＩｎｈｏｍｏｇｅｎｅｏｕｓＰｌａｓｍａｓ￥ＳＨＥＮＧＺｈｅｎｇｍｉｎｇ；ＸＵＺｈｉｚｈａｎ；ＹＵＷｅｉ；ＭＡＪｉｎｘｉｕ（ＳｈａｎｇｈａｉＩｎ...
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| 收稿时间： | 1993/7/20 |
Nonlinear Evolution of Driven Electron Plasma Oscillations in Inhomogeneous Plasmas |
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| SHENG Zhengming, XU Zhizhan, YU Wei, MA Jinxiu.Nonlinear Evolution of Driven Electron Plasma Oscillations in Inhomogeneous Plasmas[J].中国激光(英文版),1994,3(1):29-41. |
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| Authors: | SHENG Zhengming XU Zhizhan YU Wei MA Jinxiu |
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| Abstract: | The effects of both the relativistic-electron-mass variation and the convective nonlinearity on the excitation of electron plasma oscillations in cold inhomogeneous plasmas are analyzed. The electron plasma oscillations are excited by the linear mode conversion of intense electromagnetic waves, or by the beating of two electromagnetic waves. A nonlinear driven plasma wave equation is derived by using the electron hydrodynamic equations in Eulerian variables as well as Maxwell' s equations. The plasma wave frequency detuning, caused by both the relativistic and convective nonlinearities, is shown explicitly. The evolution of the driven field is obtained numerically to show the interplay between the two nonlinearities for various density scale lengths, pump field strengths and collisional damping rates. |
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| Keywords: | electron plasma oscillation inhomogeneous Plasmas relativistic and convectivenonlinearities |
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