Observations of optical guiding in a Raman free-electron laser

A. Bhattacharjee, S. Y. Cai, S. P. Chang, J. W. Dodd, T. C. Marshall

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


Evidence for optical guiding of 1.7-mm-wavelength radiation along an electron beam in a Raman free-electron laser is obtained experimentally and compared with numerical simulations. Optical guiding is manifest as the interference effect of several waveguide modes; this is observed beyond the point of electron-beam termination. The experiment operates in the regime of exponential signal gain and appreciable electron-beam space charge.

Original languageEnglish (US)
Pages (from-to)1254-1257
Number of pages4
JournalPhysical review letters
Issue number13
StatePublished - 1988
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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