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Phase-merging Enhanced Harmonic Generation Free-electron Laser

Dec 10, 2013

15 pages

Published in:

New J.Phys. 16 (2014) 043021

Published: Apr 23, 2014

e-Print:

1312.2823 [physics.acc-ph]

DOI:

10.1088/1367-2630/16/4/043021

View in:

ADS Abstract Service

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Abstract: (IOP)

Together with one of its variants, the recently proposed phase-merging enhanced harmonic generation (PEHG) free-electron laser (FEL) is systematically studied in this paper. Different from a standard high-gain harmonic generation scheme, a transverse gradient undulator is employed to introduce a phase-merging effect into the transversely dispersed electron beam in PEHG. The analytical theory of the phase-merging effect and the physical mechanism behind the phenomenon are presented. Using a representative set of beam parameters, intensive start-to-end simulations for soft x-ray FEL generation are given to illustrate the performance of PEHG. Moreover, some practical issues that may affect the performance of PEHG are also discussed.

Note:

13 pages, 12 figures

seeded FEL
PEHG
phase-merging effect
transverse gradient

References(23)

Figures(0)

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