Proposal for novel FEL operation

Author

Pinhas, Shlomo

Author_Institution

Max-Planck Inst. fur Quantenoptik, Garching, Germany

Volume

28

Issue

11

fYear

1992

fDate

11/1/1992 12:00:00 AM

Firstpage

2567

Lastpage

2572

Abstract

It is shown that free-electron-laser (FEL) operation in a novel wiggler, proposed in a previous paper by the author (1990), is possible. A single-particle approach is used to derive the small-signal gain equation at the fundamental harmonic in this configuration for sufficiently small a_ω. The small-signal gain curve has the same shape as that of the ordinary linearly polarized FEL, but the expressions for the resonance parameter and for the multiplying coefficient in the small-signal gain equation are different. The maximum value of the small-signal gain is proportional to the cube of the interaction region length in the present case, as in the ordinary linearly polarized FEL, but the maximum value of the small-signal gain is greater than that of the ordinary linearly polarized FEL for large enough surface current density

Keywords

free electron lasers; laser theory; wigglers; FEL operation; free-electron-laser; fundamental harmonic; interaction region length; multiplying coefficient; resonance parameter; single-particle approach; small-signal gain equation; surface current density; wiggler; Current density; Differential equations; Free electron lasers; Magnetic resonance; Magnetostatic waves; Polarization; Proposals; Shape; Surface waves; Undulators;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.161314

Filename

161314