| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Identification of the Amplification Mechanism in the First Free-Electron Laser as Net Stimulated Free-Electron Two-Quantum Stark Emission |
| S. H. Kim |
| 6300 Roundrock Trail 4203, Plano, Texas 75023, USA |
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| Cite this article: |
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S. H. Kim 2009 Chin. Phys. Lett. 26 054101 |
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Abstract We find that the electron phase with respect to the incident laser radiation must be random in the first free-electron laser (FEL) and, hence, the incident laser radiation works as a relaxation force to keep a Maxwellian distribution. We formulate the threshold laser intensity for amplification which agrees with the measured value in the order of magnitude in the first FEL. The magnetic wiggler must produce an electric wiggler whose period is the same as that of the magnetic wiggler. We find that net stimulated free-electron two-quantum Stark (FETQS) emission driven by this electric wiggler is the mechanism responsible for the measured gain and the measured laser intensity at the plateau in the first FEL.
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| Keywords:
41.60.Cr
42.50.Pq
03.65.Pm
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Received: 29 July 2008
Published: 23 April 2009
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| PACS: |
41.60.Cr
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(Free-electron lasers)
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42.50.Pq
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(Cavity quantum electrodynamics; micromasers)
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03.65.Pm
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(Relativistic wave equations)
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[11] Kim S H 1989 Phys. Lett. A 135 44
[12] Kim S H 1989 Phys. Lett. A 135 39
[13] Kim S H 2009 Chin Phys. Lett. 26 011201
[14] Fedorov M V 1981 Prog. Quantum Electron. 7 73 |
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