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Proceedings Paper

Optical Guiding In The Cyclotron Autoresonance Maser
Author(s): Robert G. Kleva; Baruch Levush; P. Sprangle
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Paper Abstract

The effect of the electron beam on the propagation of a three-dimensional radiation beam in a cyclotron autoresonance maser (CARM) amplifier is investigated numerically. In the exponential gain regime, it is shown that the natural tendency of the radiation beam to spread diffractively is overcome and the radiation beam is focused due to the interaction with the electron beam. The nature of the focusing is found to depend on the relative magnitude of the Doppler-shifted wave frequency, wD=w-k,v, and the relativistic gyrofrequency, Ω. The radiation beam can he transported without defocusing following saturation only if wD is slightly larger than Ω. Efficiencies in excess of 50% can he attained through the use of a tapered magnetic field.

Paper Details

Date Published: 18 November 1989
PDF: 2 pages
Proc. SPIE 1039, 13th Intl Conf on Infrared and Millimeter Waves, (18 November 1989); doi: 10.1117/12.978469
Show Author Affiliations
Robert G. Kleva, University of Maryland (United States)
Baruch Levush, University of Maryland (United States)
P. Sprangle, Naval Research Laboratory (United States)


Published in SPIE Proceedings Vol. 1039:
13th Intl Conf on Infrared and Millimeter Waves
Richard J. Temkin, Editor(s)

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