Proposal for intense attosecond radiation from an x-ray free-electron laser.
We propose the use of an ultrarelativistic 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 approximately 100 attoseconds in duration. Because of a naturally occurring frequency chirp, these pulses can be further temporally compressed.
Zholents
Alexander A
AA
Lawrence Berkeley National Laboratory, Berkeley, California 94720-8211, USA.
Fawley
William M
WM