Latham, P;
Levush, B;
Antonsen, T;
Metzler, N;
(1991)
Harmonic operation of a free-electron laser.
Physical Review Letters
, 66
(11)
1442 - 1445.
10.1103/PhysRevLett.66.1442.
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Abstract
Harmonic operation of a free-electron-laser amplifier is studied. The key issue investigated here is suppression of the fundamental. For a tapered amplifier with the right choice of parameters, it is found that the presence of the harmonic mode greatly reduces the growth rate of the fundamental. A limit on the reflection coefficient of the fundamental mode that will ensure stable operation is derived. The relative merits of tripling the frequency by operating at the third harmonic versus decreasing the wiggler period by a factor of 3 are discussed.
| Type: | Article |
|---|---|
| Title: | Harmonic operation of a free-electron laser |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.66.1442 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.107.191802 |
| Language: | English |
| Additional information: | © 1991 The American Physical Society |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Gatsby Computational Neurosci Unit |
| URI: | https://discovery.ucl.ac.uk/id/eprint/47589 |
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