Production of Ultrashort FEL XUV Pulses via a Reverse Undulator Taper

Content Provider	Semantic Scholar
Author	Fawley, William M.
Copyright Year	2007
Abstract	We adapt the reverse taper scheme presented by Saldin et al. (Phys. Rev. ST Accel. Beams, 9, 050702 [2006]) for attosecond pulse production to the XUV/soft-xray regime. We find that that GW-level pulses of a few femtosecond duration or shorter can be produced using electron beams of quite moderate parameters and undulators of 20-m length or shorter. The output pulse is significantly shifted in wavelength relative to the main background which permits a further increase in contrast ratio via simple monochromatization. Moreover, the output pulse has a natural wavelength chirp that allows further temporal compression, if wanted. Both positive and negative chirps can be produced depending upon the sign of the undulator taper.
File Format	PDF HTM / HTML
DOI	10.1016/j.nima.2008.04.051
Alternate Webpage(s)	https://digital.library.unt.edu/ark:/67531/metadc889802/m2/1/high_res_d/918938.pdf
Alternate Webpage(s)	https://escholarship.org/content/qt2b27h7rz/qt2b27h7rz.pdf?t=p0jv88
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article