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arXiv · 1906.03358

Femtosecond compression dynamics and timing jitter suppression in a terahertz-driven electron bunch compressor

E. C. Snively·M. A. K. Othman·M. Kozina·B. K. Ofori-Okai·S. P. Weathersby·S. Park·X. Shen·X. J. Wang·M. C. Hoffmann·R. K. Li·E. A. Nanni
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Abstract

We present the first demonstration of THz-driven bunch compression and timing stabilization of a few-fC relativistic electron beam with kinetic energy of 2.5 MeV using quasi-single-cycle strong field THz radiation in a shorted parallel-plate structure. Compression by nearly a factor of 3 produced a 39 fs rms bunch length and a reduction in timing jitter by more than a factor of 2, to 31 fs rms, offering a significant improvement to beam performance for applications like ultrafast electron diffraction. This THz-driven technique provides a critical step towards unprecedented timing resolution in ultrafast sciences and other accelerator applications using femtosecond-scale electron beams.

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E. C. Snively, M. A. K. Othman, M. Kozina, B. K. Ofori-Okai, S. P. Weathersby, S. Park, X. Shen, X. J. Wang, M. C. Hoffmann, R. K. Li, E. A. Nanni. 2019-06-07. Femtosecond compression dynamics and timing jitter suppression in a terahertz-driven electron bunch compressor. https://doi.org/10.1103/physrevlett.124.054801

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