Mechanism for the generation of 10(9) G magnetic fields in the interaction of ultraintense short laser pulse with an overdense plasma target.
Mechanism for the generation of 10(9) G magnetic fields in the interaction of ultraintense short laser pulse with an overdense plasma target.
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DOI：
10.1103/physrevlett.70.3075
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发表时间：
1993-05
影响因子：
8.6
通讯作者：
Sudan
中科院分区：
文献类型：
--
作者：
Sudan
超强短激光脉冲与超密等离子体靶相互作用产生超强直流电磁场的物理机制源于质动势的空间梯度和非平稳特性。推导了一套确定直流磁场演化的模型方程，并证明了直流磁场与高频激光磁场具有相同的数量级。
The physical mechanism for the generation of very high dc'' magnetic fields in the interaction of ultraintense short laser pulse with an overdense plasma target originates in the spatial gradients and nonstationary character of the ponderomotive force. A set of model equations to determine the evolution of the dc'' fields is derived and it is shown that the dc'' magnetic field is of the same order of magnitude as the high frequency laser magnetic field.