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arXiv · 1803.05323

Superradiant Undulator Radiation for Selective THz Control Experiments at XFELs

Takanori Tanikawa·Suren Karabekyan·Sergey Kovalev·Sara Casalbuoni·Vivek Asgekar·Svitozar Serkez·Michael Gensch·Gianluca Geloni
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Abstract

The generation of frequency-tunable, narrow-bandwidth and carrier-envelope-phase stable THz pulses with fields in the MV/cm regime that can be appropriately timed to the femtosecond X-ray pulses from free-electron-lasers is of highest scientific interest. It will enable to follow the electronic and structural dynamics stimulated by (non)linear selective excitations of matter on few femtosecond time and {\AA}ngstrom length scales. In this article, a scheme based on superradiant undulator radiation generated just after the XFEL is proposed. The concept utilizes cutting edge superconducting undulator technology and provides THz pulses in a frequency range between 3 and 30 THz with exceptional THz pulse energies. Relevant aspects for realization and operation are discussed point by point on the example of the European XFEL.

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Takanori Tanikawa, Suren Karabekyan, Sergey Kovalev, Sara Casalbuoni, Vivek Asgekar, Svitozar Serkez, Michael Gensch, Gianluca Geloni. 2018-03-14. Superradiant Undulator Radiation for Selective THz Control Experiments at XFELs. https://doi.org/10.1088/1748-0221%2F14%2F05%2Fp05024

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