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19 April 2024 |
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Raman and Thompson regimes of amplification in a wiggler with noncollinear laser and electron beams | | D N Klochkov
; A I Artemiev
; G Kurizki
; Yu V Rostovtsev
; M O Scully
; | | Date: |
31 Aug 2006 | | Journal: | Phys Rev E, 74 (3 Pt 2), 036503 | | Abstract: | The collective and single-electron amplification regimes of a noncollinear free-electron laser (FEL) are studied within the framework of dispersion equations. In the limit of small-signal gain the growth rates and the conditions for self-amplified excitations are found for the collective (Raman) and single-electron (Thompson) regimes. The Raman regime is shown to be preferable for the coherent spontaneous second harmonic generation by ultrarelativistic electron beams. Raman excitations in a noncollinear FEL, e.g., in an FEL without inversion, are favored by the noncollinear geometry of the electron and the laser beams, and by the relativity of the beam electrons. | | Source: | PubMed, pmid17025756 | | Services: | Forum | Review | Favorites | |
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