Abstract
A MECHANISM is proposed here for producing coherent photons by the interaction in a medium of relativistic electrons (moving with velocity greater than the electromagnetic phase velocity in the medium) with coherent electromagnetic waves incident in the opposite direction. A new effect of potential use is exhibited; it is a consequence of two distinct physical phenomena acting synergistically to result in double-Doppler-shifted coherent waves contained within a Mach cone. Its applications include production of narrow band radiation at higher frequencies and wave numbers than are at present available from lasers, which has implications for holography and for improved pumping efficiency and production of narrow band submillimetre waves from microwaves, which has significance for communications.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Kulikov, O. F., Telnov, Y. Y., Filippov, E. I., and Yakimenko, M. N., Phys. Lett., 13, 344 (1964).
Bemporad, C., Milburn, R. M., Tanaka, N., and Fotino, M., Phys. Rev., 138, B1456 (1965).
Milburn, R. M., Phys. Rev. Lett., 10, 75 (1963).
Arutyunian, F. R., and Tumanian, V. A., Phys. Lett., 4, 176 (1963).
Arutyunian, F. R., Goldman, I. I., and Tumanian, V. A., Soviet Phys. JETP, 18, 218 (1964).
Perelshtein, E. A., and Podgoretskii, M. I., Soviet J. nucl. Phys., 12, 631 (1971).
Kolpakov, A. V., Soviet J. nucl. Phys. 16, 554 (1973).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
SCHNEIDER, S., SPITZER, R. Interaction of coherent electromagnetic waves with relativistic electrons in a medium. Nature 250, 643–645 (1974). https://doi.org/10.1038/250643a0
Received:
Issue Date:
DOI: https://doi.org/10.1038/250643a0
This article is cited by
-
Frequency conversion and amplification by stimulated electromagnetic shock radiation (SESR)
Applied Physics (1977)
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.