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Open Access Publications from the University of California

Intense attosecond radiation from an X-ray FEL


We propose the use of a ultra-relativistic electron beam interacting with a few-cycle, intense laser pulse and an intense pulse of the coherent x-rays to produce a multi-MW intensity, x-ray pulses ~;100 attoseconds in duration. Due to a naturally-occurring frequency chirp, these pulses can be further temporally compressed.

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