Terahertz Multiplier Circuits

Robust radiation sources in the 1-2 THz range have been sorely lacking from the repertoire of terahertz technologists and scientists. This paper reviews the progress in chip fabrication technology, based on planar GaAs Schottky diodes, that has enabled the design and fabrication of multiplier circuits working well into the terahertz range. Recent results obtained with multiplied sources in the 1-2 THz range were summarized