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arXiv physics/0702177physics.plasm-ph
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Laser -等离子体通道中相干长寿命结构的产生和观测

Generation and Observation of Coherent, Long--Lived Structures in a Laser--Plasma Channel

T. V. Liseykina, F. Ceccherini, F. Cornolti, E. Yu. Echkina, A. Macchi, F. Pegoraro, M. Borghesi, S. Kar, L. Romagnani, S. V. Bulanov, O. Willi, M. Galimberti

摘要:

在最近的实验中,在相对论强度的激光脉冲与低密度等离子体相互作用,质子照相技术显示的证据长寿命的场结构后产生的自沟道的激光脉冲。我们提出了这种相互作用机制的二维粒子细胞模拟,其中类似结构的动力学已经解决了高的时间和空间分辨率。一个轴对称的场图案,类似于孤子和涡旋结构,已被观察到。目前正在研究这种结构的物理性质,并与实验数据进行比较。

英文摘要:

In recent experiments of laser pulse interaction at relativistic intensities with a low density plasma, the proton radiography technique showed evidence of long--lived field structures generated after the self-channeling of the laser pulse. We present 2D particle-in-cell simulations of this interaction regime, where the dynamics of similar structures has been resolved with high temporal and spatial resolution. An axially symmetrical field pattern, resembling both soliton-like and vortex structures, has been observed. A study of the physics of such structures and a comparison with experimental data is in progress.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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