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应用简化模型,本文的研究表明:由于电子质量的相对论性变化,由线性模式转换产生的静电等离子体波在临界面附近呈现出滞后效应,此效应将增大斜入射p偏振的光在等离子体中的吸收,这是通过增大等离子体波大振幅的区域引起的,当光强超过滞后效应的阈值光强时,吸收率将大大超过线性结果。Using a simple model, it is shown that because of the relativistic electron-mass variation, the mode-converted electrostatic electric field exhibits hysteresis in the vicinity of critical layer. This hysteretic effect is to increase the resonance absorption of obliquely incident p-pola-rized light in a way by increasing the large amplitude region of the electrostatic field. When the threshold light intensity for the occurance of hysteresis is exceeded, the fractional absorption increases drastically above the linear results.
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