Dispersive effects on the main wave modulational instability in free electron lasers

dc.contributor.author	Rizzato, Felipe Barbedo	pt_BR
dc.date.accessioned	2014-09-23T02:12:12Z	pt_BR
dc.date.issued	1990	pt_BR
dc.identifier.issn	1050-2947	pt_BR
dc.identifier.uri	http://hdl.handle.net/10183/103599	pt_BR
dc.description.abstract	The main-wave one-dimensional modulational instability due to the dispersive terms of the wave equation in a free-electron laser is introduced and analyzed. We derive the appropriate dispersion relation and compare its associated growth rate with one due to wave-particle energy exchange alone, as obtained by Davidson and Wurtele under the deep trapping assumption [Phys. Fluids 30, 557 (1987)]. It is found that, depending basically on the relation between some characteristic parameters, the modulational instability may be governed by wave dispersion. We also discuss the effects of waveguides on these instabilities and the behavior of the unstable modes as a function of the mentioned characteristic parameters.	en
dc.format.mimetype	application/pdf	pt_BR
dc.language.iso	eng	pt_BR
dc.relation.ispartof	Physical review. A, Atomic, molecular, and optical physics. New York. Vol. 41, n. 3 (Feb. 1990), p. 1629-1633	pt_BR
dc.rights	Open Access	en
dc.subject	Física de plasmas	pt_BR
dc.subject	Ondas nao lineares	pt_BR
dc.subject	Solitons	pt_BR
dc.subject	Plasmas	pt_BR
dc.title	Dispersive effects on the main wave modulational instability in free electron lasers	pt_BR
dc.type	Artigo de periódico	pt_BR
dc.identifier.nrb	000015360	pt_BR
dc.type.origin	Estrangeiro	pt_BR

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