Compact free-electron lasers exploiting media with periodically modulated refractive index

Victor V. Apollonov; Alexander I. Artemyev; Mikhail V. Fedorov; E. A. Shapiro; John K. McIver

doi:10.1117/12.380900

3 April 2000 Compact free-electron lasers exploiting media with periodically modulated refractive index

Victor V. Apollonov, Alexander I. Artemyev, Mikhail V. Fedorov, E. A. Shapiro, John K. McIver

Author Affiliations +

Proceedings Volume 3889, Advanced High-Power Lasers; (2000) https://doi.org/10.1117/12.380900
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan

Abstract

Amplification in free-electron lasers exploiting media with periodically modulated refractive indices is studied in the regime of a large modulation. The conditions for realization of the large-modulation regime in a layered plasma medium and in a periodic dielectric superlattice-like medium are established. The maximized gain, the corresponding saturation field and efficiency, as well as the optimal electron energy and propagation direction are determined and compared to each other for different types of modulated media. It is shown that the large-modulation regime makes it possible to extend significantly the operation frequency domain of the FEL employing a low-relativistic electron beam. Relationship with the Cherenkov and stimulated resonance-transition-radiation FELs is discussed.

Citation Download Citation

Victor V. Apollonov, Alexander I. Artemyev, Mikhail V. Fedorov, E. A. Shapiro, and John K. McIver "Compact free-electron lasers exploiting media with periodically modulated refractive index", Proc. SPIE 3889, Advanced High-Power Lasers, (3 April 2000); https://doi.org/10.1117/12.380900

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