外文题目: Deflection of a Reflected Intense Vortex Laser Beam
作者: Zhang, Lingang; Shen, Baifei; Zhang, Xiaomei; Huang, Shan; Shi, Yin; Liu, Chen; Wang, Wenpeng; Xu, Jiancai; Pei, Zhikun; Xu, Zhizhan
刊名: Phys. Rev. Lett.
年: 2016 卷: 117 期: 11 文章编号：113904
英文关键词:

ORBITAL ANGULAR-MOMENTUM; LAGUERRE-GAUSSIAN LASER; LIGHT; SCATTERING; PLASMAS
英文摘要:
An interesting deflection effect deviating the optical reflection law is revealed in the relativistic regime of intense vortex laser plasma interaction. When an intense vortex laser obliquely impinges onto an overdense plasma target, the reflected beam deflects out of the plane of incidence with an experimentally observable deflection angle. The mechanism is demonstrated by full three-dimensional particle-in-cell simulation as well as analytical modeling using the Maxwell stress tensor. The deflection results from the rotational symmetry breaking of the foil driven by the unsymmetrical shear stress of the vortex beam. The l-dependent shear stress, where l is the topological charge, as an intrinsic characteristic to the vortex beam, plays an important role as the ponderomotive force in relativistic vortex laser matter interaction.


文献类型: 期刊论文
正文语种: English
收录类别: SCIEI
DOI: 10.1103/PhysRevLett.117.113904


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