Self induced distributed feedback in plasma filled radiation sources

M. Botton, Amiram Ron

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


We show that the efficiency enhancement in plasma filled radiation sources and its dependence on the density of the background plasma can be accounted for by a mechanism of self-induced distributed feedback. Two counter propagating waves modulate the plasma density by the ponderomotive potential of their multiplication, causing thus a grating in the refractive index of the plasma. The two waves are coupled by Brag reflections. The distributed feedback enhances the interaction between the resonant wave and the beam, and reduces the threshold gain for oscillations. Both effects enhance the efficiency of the oscillator.

Original languageAmerican English
Pages (from-to)188-199
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1 Apr 1992
Externally publishedYes
EventIntense Microwave and Particle Beams III 1992 - Los Angeles, United States
Duration: 19 Jan 199224 Jan 1992

Bibliographical note

Publisher Copyright:
© 1992 SPIE. All rights reserved.


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