Photon orbital angular momentum in a plasma vortex
Plasma Physics
2008-05-19 v3 Space Physics
Abstract
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.
Cite
@article{arxiv.0804.3221,
title = {Photon orbital angular momentum in a plasma vortex},
author = {J. T. Mendonça and B. Thidé and J. E. S. Bergman and S. M. Mohammadi and B. Eliasson and W. Baan and H. Then},
journal= {arXiv preprint arXiv:0804.3221},
year = {2008}
}
Comments
4 pages, submitted to Phys. Rev. Lett