Quantum theory of incoherent THz emission of an interacting electron-ion plasma
Quantum theory of incoherent THz emission of an interacting electron-ion plasma
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DOI：
10.1103/physreva.71.053819
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发表时间：
2005-05
影响因子：
2.9
通讯作者：
Marten Richter;M. Schaarschmidt;A. Knorr;W. Hoyer;J. Moloney;E. Wright;M. Kira;S. Koch
中科院分区：
文献类型：
--
作者：
Marten Richter;M. Schaarschmidt;A. Knorr;W. Hoyer;J. Moloney;E. Wright;M. Kira;S. Koch
最近在激光脉冲电离空气中观察到的相互作用的电子-离子气体自发发射的太赫兹光谱进行了理论分析。利用所涉及的许多粒子系统的相关展开，处理电子-分子和电子-离子碰撞对自由电子连续体中跃迁的贡献。根据粒子密度和离子分布，电磁发射范围从太赫兹范围到光学频率。
The THz spectrum of the spontaneous emission of an interacting electron-ion gas, recently observed in laser pulse ionized air, is theoretically analyzed. Using the correlation expansion of the involved many particle system, the contribution of electron-molecule and electron-ion collisions to the transitions in the free electron continuum are treated. Depending on the particle density and the ion distribution, electromagnetic emission is found from the terahertz range up to optical frequencies.