Title :
Two models for electro-magnetic wave amplifier by utilizing traveling electron beam
Author :
Fares, Hesham ; Yamada, Minoru ; Kuwamura, Yuji ; Asada, Masahiro
Author_Institution :
Grad. Sch. of Natural Sci. & Tech., Kanazawa Univ., Ishikawa
Abstract :
Electro-magnetic (EM) wave amplifiers by utilizing traveling electron beam in vacuum come to have attention as devices covering over extremely wide frequency range from the microwave to the X-ray regions. We point out that two different amplification mechanisms should exist according to the relation between the EM wavelength and the electron size. The first model is named as coherent electron wave (CEW) model. Another one is named as localized electron (LE) model. The boundary of these two models is locating in the THz region.
Keywords :
electron beams; travelling wave amplifiers; EM wavelength; amplification mechanisms; coherent electron wave model; electromagnetic wave amplifier; electron size; localized electron model; traveling electron beam; Electron beams; Electron optics; Frequency; Microwave amplifiers; Optical amplifiers; Optical refraction; Optical variables control; Optical waveguides; Refractive index; Stimulated emission;
Conference_Titel :
Numerical Simulation of Optoelectronic Devices, 2008. NUSOD '08. International Conference on
Conference_Location :
Nottingham
Print_ISBN :
978-1-4244-2307-1
DOI :
10.1109/NUSOD.2008.4668235
