Title :
Structure-less generation of sub-millimeter radiation
Author :
Bishofberger, Kip ; Svimonishvili, Tengiz ; Faehl, Rickey J. ; Carlsten, Bruce E.
Author_Institution :
Los Alamos Nat. Lab., Los Alamos, NM, USA
Abstract :
We report detailed simulations of a two-stream instability using co-propagating electron beams of differing energies By adjusting parameters such as beam currents and the energy difference, a remarkable amount of self-modulation occurs at controllable and predictable frequencies. The typical frequencies of oscillation traverse the sub-millimeter and terahertz range, and the power associated with the bunching reaches saturation in distances of propagation less than 0.1 meter.
Keywords :
electron beams; modulation; plasma instability; submillimetre wave generation; submillimetre wave tubes; terahertz wave generation; beam currents; co-propagating electron beams; electron beam manipulation; self-modulation; structure-less submillimeter radiation generation; terahertz generation; two-stream instability; Cathodes; Electron beams; Frequency; Laboratories; Manipulator dynamics; Oscillators; Particle beams; Power generation; Predictive models; Submillimeter wave propagation; beam dynamics; electron beam manipulation; sub-millimeter generation; terahertz generation; two-stream instability;
Conference_Titel :
Vacuum Electronics Conference, 2009. IVEC '09. IEEE International
Conference_Location :
Rome
Print_ISBN :
978-1-4244-3500-5
Electronic_ISBN :
978-1-4244-3501-2
DOI :
10.1109/IVELEC.2009.5193537
