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Title: Quasioptical modeling of wave beams with and without mode conversion: III. Numerical simulations of mode-converting beams
Contributors: K. Yanagihara, I. Y. Dodin, and S. Kubo
U. S. Department of Energy
Keywords: quasioptical mode
geometrical optics
Issue Date: Aug-2019
Publisher: Princeton Plasma Physics Laboratory, Princeton University
Related Publication: Physics of Plasmas
Abstract: This work continues a series of papers where we propose an algorithm for quasioptical modeling of electromagnetic beams with and without mode conversion. The general theory was reported in the first paper of this series, where a parabolic partial differential equation was derived for the field envelope that may contain one or multiple modes with close group velocities. In the second paper, we presented a corresponding code PARADE (PAraxial RAy DEscription) and its test applications to single-mode beams. Here, we report quasioptical simulations of mode-converting beams for the first time. We also demonstrate that PARADE can model splitting of two-mode beams. The numerical results produced by PARADE show good agreement with those of one-dimensional full-wave simulations and also with conventional ray tracing (to the extent that one-dimensional and ray-tracing simulations are applicable).
Appears in Collections:Theory and Computation

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