Smith-purcell terahertz sources

Many applications of THz radiation remain impractical or impossible due to the lack of compact sources with sufficient power. A source, in which the interaction occurs between an electron beam and a diffraction grating, has been shown in simulations to be capable of generating high THz power in a co...

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Bibliographic Details
Main Authors: Gardelle, Jacques, Modin, Patrick, Bluem, Hans P., Jackson, Robert H., Todd, Alan M. M., Donohue, John T.
Format: Conference Proceeding
Language:English
Subjects:
Density measurement
Diffraction
Diffraction gratings
Electron beams
Gratings
Harmonic analysis
Magnetic fields
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Summary:Many applications of THz radiation remain impractical or impossible due to the lack of compact sources with sufficient power. A source, in which the interaction occurs between an electron beam and a diffraction grating, has been shown in simulations to be capable of generating high THz power in a compact package. The grating surface-wave produces strong beam bunching and generates significant power at the fundamental frequency and its harmonics. We will discuss the Coherent Smith-Purcell studies performed at CESTA both with planar and cylindrical configurations. The promising recent experimental results at 100 and 200 GHz will be presented.
ISSN:2162-2035
DOI:10.1109/IRMMW-THz.2016.7758607