Numerical analysis of miter bend with spiral phase mirror
To excite optical vortices using high-power millimeter waves, we use a miter bend with a spiral phase mirror. Through numerical simulations, we demonstrate that vortex beams can be successfully excited by employing a spiral phase mirror that appropriately accounts for the phase difference between th...
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Published in | Journal of Advanced Simulation in Science and Engineering Vol. 12; no. 2; pp. 329 - 339 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Japan Society for Simulation Technology
01.01.2025
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Subjects | |
Online Access | Get full text |
ISSN | 2188-5303 2188-5303 |
DOI | 10.15748/jasse.12.329 |
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Summary: | To excite optical vortices using high-power millimeter waves, we use a miter bend with a spiral phase mirror. Through numerical simulations, we demonstrate that vortex beams can be successfully excited by employing a spiral phase mirror that appropriately accounts for the phase difference between the input and output modes. The simulations also reveal the generation of higher-order modes caused by diffraction inherent to the miter bend structure and unintended reflections arising from the singularity at the optical axis of the spiral phase mirror. Additionally, we propose a method to estimate the topological charge, which corresponds to the vorticity, from real-valued data. The simulation results confirm that vortex beams are successfully excited as the dominant mode. |
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ISSN: | 2188-5303 2188-5303 |
DOI: | 10.15748/jasse.12.329 |