Characterization of the THz quasi-optical channel for the measurement of the power radiated by photoconductive antennas
Alessandro Garufo (TU Delft - Tera-Hertz Sensing)
Giorgio Carluccio (TU Delft - Tera-Hertz Sensing)
Joshua R. Freeman (University of Leeds)
David R. Bacon (University of Leeds)
N. Llombart Juan (TU Delft - Tera-Hertz Sensing)
Alexander G. Davies (University of Leeds)
Andrea Neto (TU Delft - Tera-Hertz Sensing)
More Info
expand_more
Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.
Abstract
In this paper a rigorous electromagnetic characterization of the setup for measuring the THz power radiated by pulsed photoconductive antenna is discussed. Such characterization is expressed in terms of efficiencies which quantify how much power is lost in the coupling between the various components involved in the measurement setup. The conducted analysis highlights how such efficiencies affect the energy spectrum of the measured pulsed signal. Measurement results with two different detectors will be shown during the conference and will be compared against the power estimation obtained by a recently developed equivalent circuit model for photoconductive antennas. The proposed electromagnetic modeling allows us to effectively improve the design of THz time domain systems.