THz-driven split ring resonator undulator

We propose a short period undulator based on the electromagnetic field pattern in a THz-driven split ring resonator structure. An analytical model is developed that allows us to assess the key performance parameters of the undulator and to estimate the emitted radiation spectrum. Different geometric...

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Bibliographic Details
Published in:Physical review. Accelerators and beams 2021-01, Vol.24 (1), p.010703, Article 010703
Main Authors: Rohrbach, D., Ollmann, Z., Hayati, M., Schroeder, C. B., Leemans, W. P., Feurer, T.
Format: Article
Language:English
Subjects:
Electromagnetic fields
Mathematical models
Parameter estimation
PARTICLE ACCELERATORS
Resonators
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Summary:We propose a short period undulator based on the electromagnetic field pattern in a THz-driven split ring resonator structure. An analytical model is developed that allows us to assess the key performance parameters of the undulator and to estimate the emitted radiation spectrum. Different geometric configurations are compared in detail using numerical simulations. A 100 MeV electron bunch with 5 pC charge is shown to emit narrow band 83 eV photon pulses with a peak brightness of approximately1019photons/(smrad2mm20.1%BW)when passing through the 100 mm long undulator with a 1 mm period.
ISSN:2469-9888
2469-9888
DOI:10.1103/PhysRevAccelBeams.24.010703