Multilayer Anisotropic Thin Film with a Twist
ISSN: 1829-1171
Submitted: 2026-07-17
Natural Sciences, Physics, 2026
THz Partially Coherent Undulator Radiation from the Truncated Electron Bunch
This is an open access article distributed under the
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Submitted: 2026-07-23
© 2026 by author(s) and The Gufo Inc.
This work is licensed under Creative Commons Attribution–NonCommercial International License
(CC BY-NC 4.0).
Abstract
The problem of THz coherent undulator radiation from the electron bunch with asymmetric distribution in the longitudinal direction is considered. It is shown that the contribution of coherent part of the total radiation for waves with wavelength much shorter than the characteristic of the longitudinal dimension of the bunch is predominant. It is another way of increasing the efficiency of a free electron laser (FEL).