| 微波与非均匀等离子体相互作用过程中坑子的形成与谐波发射 |
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| 引用本文： | 刘建敏,蒋勇,丁卫星,胡根泽,俞昌旋.微波与非均匀等离子体相互作用过程中坑子的形成与谐波发射[J].物理学报,1992,41(10):1613-1619. |
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| 作者姓名： | 刘建敏 蒋勇 丁卫星 胡根泽 俞昌旋 |
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| 作者单位： | 中国科学技术大学近代物理系,合肥230026;中国科学技术大学近代物理系,合肥230026;中国科学技术大学近代物理系,合肥230026;中国科学技术大学近代物理系,合肥230026;中国科学技术大学近代物理系,合肥230026 |
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| 摘 要： | 在稳态的等离子体装置中，利用微波和等离子体的相互作用，模拟了激光等离子体过程，研究了这个非线性相互作用过程中产生的坑子(caviton)，观察了坑子幅度增长，衰减及传播的演化过程。同时利用数值计算求解了在实验条件下的Zakharov方程，得到与实验较为符合的结果。实验测量了在相互作用过程中的二次谐波发射谱，并用参量衰变过程分析了二次谐波的频率红移。
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CAVITON FORMATION AND SECOND HARMONIC EMISSION DURING THE INTERACTION OF MICROWAVE WITH INHOMOGENEOUS PLASMA |
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| LIU JIAN-MIN,JIANG YONG,DING WEI-XING,HU GEN-ZE and YU CHANG-XUAN.CAVITON FORMATION AND SECOND HARMONIC EMISSION DURING THE INTERACTION OF MICROWAVE WITH INHOMOGENEOUS PLASMA[J].Acta Physica Sinica,1992,41(10):1613-1619. |
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| Authors: | LIU JIAN-MIN JIANG YONG DING WEI-XING HU GEN-ZE and YU CHANG-XUAN |
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| Abstract: | The experimental simulations of laser-plasma interaction process by means of the microwave-plasma interaction have been performed in a steady state plasma device. The evolution of cavitom in the nonlinear interaction is experimentally investigated. The good agreement between experimental results and numerical calculation of Zakharov equation is obtained. The second harmonic emission spectrum is measured, and the mechanism of red-shift of second harmonic frequency is discussed. |
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