The slowly varying envelope approximation revisited
1993; Elsevier BV; Volume: 101; Issue: 3-4 Linguagem: Inglês
10.1016/0030-4018(93)90363-a
ISSN1873-0310
AutoresR. Bonifacio, R. Caloi, C. Maroli,
Tópico(s)Particle accelerators and beam dynamics
ResumoAbstract The limit of validity of the slowly varying envelope approximation (SVEA) is derived as a function of the “bulk” velocity v of the radiating system, which reads l p ⪢λ(1− v/c ), l p being the radiation pulse length. This condition reduces to the usual SVEA in the limit v/c ⪡ 1, whereas it is sensibly relaxed in the relativistic limit. The relevance for the case of microwave free electron lasers is discussed.
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