Physical Mechanism of the Transverse Instability in Radiation Pressure Ion Acceleration

Y. Wan, C. H. Pai, C. J. Zhang, F. Li, Y. P. Wu, J. F. Hua, W. Lu, Y. Q. Gu, L. O. Silva, C. Joshi, W. B. Mori

研究成果: 雜誌貢獻期刊論文同行評審

30 引文 斯高帕斯(Scopus)


The transverse stability of the target is crucial for obtaining high quality ion beams using the laser radiation pressure acceleration (RPA) mechanism. In this Letter, a theoretical model and supporting two-dimensional (2D) particle-in-cell (PIC) simulations are presented to clarify the physical mechanism of the transverse instability observed in the RPA process. It is shown that the density ripples of the target foil are mainly induced by the coupling between the transverse oscillating electrons and the quasistatic ions, a mechanism similar to the oscillating two stream instability in the inertial confinement fusion research. The predictions of the mode structure and the growth rates from the theory agree well with the results obtained from the PIC simulations in various regimes, indicating the model contains the essence of the underlying physics of the transverse breakup of the target.

期刊Physical Review Letters
出版狀態已出版 - 30 11月 2016


深入研究「Physical Mechanism of the Transverse Instability in Radiation Pressure Ion Acceleration」主題。共同形成了獨特的指紋。