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Storage ring FEL dynamics: an analytical treatment

Динамика лазера на св ободных электронах в накопительном кольц е: Аналитическое рассмотрение

  • Published:
Il Nuovo Cimento B (1971-1996)

Summary

The theory of the free-electron laser dynamics operating in a storage ring is reconsidered within the framework of an analytical treatment. It is pointed out that the dynamical behaviour can be characterized by the round trip evolution of self-reproducing optical field configurations (the supermodes) which allow the understanding of the laser spectral and spatial features. Simple expressions for the threshold gain and for the system efficiency are also derived.

Riassunto

In questo lavoro si riconsidera la teoria della dinamica FEL in anello di accumulazione nell’ambito di una trattazione analitica. Si dimostra che il comportamento dinamico può essere caratterizzato dall’evoluzione dei modi stazionari caratteristici del sistema (i super modi) che permettono di capire le earatteristiche spaziali e spettrali del laser. Si derivano inoltre espressioni semplici per il guadagno di soglia e per l’efficienza.

Резюме

В рамках аналитическ ого подхода заново рассматривается дин амика лазера на свободных э лектронах в накопите льном кольце. Отмечается, чт о динамическое поведе ние может быть охарак теризовано возвратно-поступате льной эволюцией самовоспр оизводящихся конфиг ураций оптического поля (суп ер-моды), которые позволяют по нять спектральные и пространственные ха рактеристики лазера. Также выводят ся простые выражения для порогового усиления и для эффективности систе мы.

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Authors and Affiliations

  1. Dip. TIB, U.S. Fisica Applicata, CRE Frascati, ENEA, C.P. 65, 00044 Frascati, Roma, Italia

    G. Dattoli, L. Giannessi (ENEA Guest), H. Fang, A. Renieri & A. Torre

  2. Institute of Optics and Fine Mechanics, Shanghai, China

    H. Fang

Authors
  1. G. Dattoli
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  2. L. Giannessi
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  3. H. Fang
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  4. A. Renieri
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  5. A. Torre
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Dattoli, G., Giannessi, L., Fang, H. et al. Storage ring FEL dynamics: an analytical treatment. Nuov Cim B 101, 703–714 (1988). https://doi.org/10.1007/BF02743626

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  • DOI: https://doi.org/10.1007/BF02743626

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