Title :
15.5: Beam driven terahertz plasmons in graphite and graphene layers
Author :
Manheimer, Wallace ; Cooke, Simon J.
Author_Institution :
Beam-Wave Res., Inc., Bethesda, MD, USA
Abstract :
We investigate the use of a thin surface layer of graphene or graphite on a dielectric substrate as a slow-wave structure for RF amplification at terahertz frequencies. The dispersion characteristic, losses and the spatial growth rate are computed for interaction with a planar electron beam.
Keywords :
amplifiers; graphene; graphite; permittivity; slow wave structures; surface plasmons; C; RF amplification; beam-driven terahertz plasmons; dielectric substrate; dispersion characteristic; graphene; graphite; losses; planar electron beam; slow-wave structure; spatial growth rate; Charge carrier density; Conducting materials; Dielectric substrates; Electron beams; Frequency estimation; Laser excitation; Plasmons; Radiofrequency amplifiers; Semiconductor lasers; Surface waves; Graphite; graphene; slow-wave amplifier;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2010 IEEE International
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4244-7098-3
DOI :
10.1109/IVELEC.2010.5503417
