2012 37th International Conference on Infrared, Millimeter, and Terahertz Waves 2012
DOI: 10.1109/irmmw-thz.2012.6380446
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Terahertz wave radiation source based on two-section periodical waveguide structures

Abstract: A terahertz wave radiation source with two-section periodical waveguide structure (PWS) is proposed and analyzed. The first section (section-I) is used to pre-modulate the electron beam, and the second section (section-II) is for terahertz wave generation. By means of theoretical analysis and numerical simulations, we demonstrate that the starting current density of the beam-wave interaction in section-II can be significantly reduced provided the operation frequency is the harmonic of electron beam's pre-modul… Show more

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