The Norton equivalent circuit model of PCA to predict the parasitic effects of the substrate on THz emission saturation
P. M. Sberna (TU Delft - Tera-Hertz Sensing)
G. Ghosh (TU Delft - ChemE/Opto-electronic Materials)
M.D. Huiskes (TU Delft - Tera-Hertz Sensing)
L.D.A. Siebbeles (TU Delft - ChemE/Opto-electronic Materials)
Andrea Neto (TU Delft - Tera-Hertz Sensing)
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Abstract
Photo-conductive antennas (PCAs) are the workhorse of time-domain THz sensing and imaging. In this work, we employ a rigorous Norton equivalent circuit model to identify and estimate the substrate-related parasitic effects, that might limit the THz emission, to better design future PCAs.