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arXiv 0804.3221physics.plasm-phphysics.space-ph
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等离子体涡旋中的光子轨道angular momentum

Photon orbital angular momentum in a plasma vortex

J. T. Mendonça, B. Thidé, J. E. S. Bergman, S. M. Mohammadi, B. Eliasson, W. Baan, H. Then

摘要:

从理论上研究了光子束与等离子体涡旋之间的角动量交换,论证了等离子体中光子角动量态的可能激发。这可能与实验室和空间等离子体诊断、射电天文学自校准和产生光子角动量束有关。一个静态的螺旋结构的等离子体扰动,和旋转的等离子体涡旋进行了详细研究,这两种情况下,和它们的相关性的物理性质的光子OAM之间的比较,建立。

英文摘要:

We study theoretically the exchange of angular momentum between a photon beam and a plasma vortex, and demonstrate the possible excitation of photon angular momentum states in a plasma. This can be relevant to laboratory and space plasma diagnostics; radio astronomy self-calibration; and generating photon angular momentum beams. A static plasma perturbation with helical structure, and a rotating plasma vortex are studied in detail and a comparison between these two cases, and their relevance to the physical nature of photon OAM, is established.

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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