Abstract
Optical klystrons have been in use for decades, and the first use was in an ultraviolet free-electron laser oscillator. An optical klystron (OK) is composed of a modulator wiggler that imposes a velocity modulation on the electrons followed by a magnetic dispersive section that enhances the modulation prior to injection into a radiator wiggler that takes the interaction with the modulation-enhanced electrons to saturation. The magnetic dispersive element is, typically, a three- or four-dipole chicane. The radiator can be tuned to the fundamental or a harmonic of the modulator, in which case the interaction is referred to as high-gain harmonic generation (HGHG). In this chapter, we discuss these concepts and simulations of representative configurations.
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References
G.N. Kuliapanov, V.N. Litvinenko, I.V. Panaev, V.M. Popik, A.N. Skrinsky, A.S. Sokolov, N.A. Vinokurov, The VEPP-3 storage ring optical klystron: lasing in the visible and ultraviolet regions. Nucl. Instrum. Meth. A296, 1 (1990)
L.H. Yu, M. Babzien, I. Ben-Zvi, L.F. DiMauro, A. Doyuran, W. Graves, E. Johnson, S. Krinsky, R. Malone, I. Pogorelsky, J. Skaritka, G. Rakowsky, L. Solomon, X.J. Wang, M. Woodle, V. Yakimenko, S.G. Biedron, J.N. Galayda, E. Gluskin, J. Jagger, V. Sajaev, I. Vasserman, High-gain harmonic-generation free-electron laser. Science 289, 932 (2000)
A. Doyuran, M. Babzien, T. Shaftan, L.H. Yu, L.F. Dimauro, I. Ben-Zvi, S.G. Biedron, W. Graves, E. Johnson, S. Krinsky, R. Malone, I. Pogorelsky, J. Skaritka, G. Rakowsky, X.J. Wang, M. Woodle, V. Yakimenko, J. Jagger, V. Sajaev, I. Vasserman, Characterization of a high-gain harmonic-generation free-electron laser at saturation. Phys. Rev. Lett. 86, 5902 (2001)
E. Allaria et al., Highly coherent and stable pulses from the FERMI seeded free-electron laser in the extreme ultraviolet. Nat. Photonics 6, 699 (2012)
E. Allaria et al., Two-stage seeded soft x-ray free-electron laser. Nat. Photonics 7, 913 (2013)
D. Gauthier et al., Spectro Temporal shaping of seed free-electron laser pulses. Phys. Rev. Lett. 115, 114801 (2015)
E. Roussel et al., Multicolor high-gain free-electron laser driven by seeded microbunching instability. Phys. Rev. Lett. 115, 214801 (2015)
H.P. Freund, Comparison of free-electron laser amplifiers based on a step-tapered optical klystron and a conventional tapered wiggler. Phys. Rev. ST-AB 16, 060701 (2013)
V.N. Litvinenko, High gain distributed optical klystron. Nucl. Instrum. Meth A304, 463–464 (1991)
V.A. Bazylev, M.M. Pitatelev, Multisectional FELs with dispersion and undulator sections. Nucl. Instrum. Meth. A358, 64 (1995)
N.A. Vinokurov, Multisegment wigglers for short wavelength FEL. Nucl. Instrum. Meth. A375, 264 (1996)
H.P. Freund, G.R. Neil, Nonlinear harmonic generation in distributed optical klystrons. Nucl. Instrum. Meth. A475, 373 (2001)
G.R. Neil, H.P. Freund, Dispersively enhanced bunching in high-gain free-electron lasers. Nucl. Instrum. Meth. A475, 381 (2001)
Technical Design Report, The BESSY soft x-ray free electron laser. https://www.helmholtz-berlin.de/media/media/grossgeraete/beschleunigerphysik/fel/fel_tdr.pdf
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Freund, H.P., Antonsen, T.M. (2018). Optical Klystrons and High-Gain Harmonic Generation. In: Principles of Free Electron Lasers . Springer, Cham. https://doi.org/10.1007/978-3-319-75106-1_13
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DOI: https://doi.org/10.1007/978-3-319-75106-1_13
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