光在等离子体中的共振吸收解析研究

ANALYTICAL STUDY ON THE RESONANT ABSORPTION OF LIGHT IN NON-UNIFORM PLASMA

本文通过求光从等离子体与真空界面的反射率,解析地求出了长标尺长度和短标尺长度的线性密度轮廓冷等离子体对光的定态共振吸收率。在长标尺长度下,本文的结果与以前的结果一致,但可以精确到更高阶数;在短标尺长度下,本文的解析结果与数值计算符合。

The resonant absorption of light in cold plasma for linear density profile has been calculated analytically both for long and short scalelengths by calculating the reflectivity from the plasma and vaccum interface. The results in long scalelength case are in agreement with the well-known results but with a higher order in accuracy, and that in short scalelength case are consistent with numerical calculation.