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arXiv · 1512.05639

The Segmented Beamformer for Electromagnetic Waves of the Terahertz Free Electron Laser

G. D. Bogomolov·V. D. Gromov·A. A. Letunov·V. V. Zavyalov
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Abstract

The quasi-optical segmented mirror for a formation of the target irradiation field was manufactured and investigated. It was designed for the high power THz beam of the free electron laser (FEL) using as a target a dust particle cloud, simulating cosmic dust. Numerical calculation of the beam shape and its low power laboratory measurements was made in the spectral region 1 - 3 THz of the first phase of the Novosibirsk FEL construction. The theoretical calculations of the diffraction effects reveal a speckle structure of a target spot, which was confirmed by the laboratory experiment. The beamformer technology was adapted for manufacturing and such device could be widely used for a concentration of powerful terahertz radiation.

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G. D. Bogomolov, V. D. Gromov, A. A. Letunov, V. V. Zavyalov. 2015-12-16. The Segmented Beamformer for Electromagnetic Waves of the Terahertz Free Electron Laser. https://arxiv.org/abs/1512.05639

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