On the Design of Bulk Absorbers at THz frequencies

Neto, A. (Speaker)

Activity: Talk or presentationTalk or presentation at a conference


In this contribution the design of bulk absorbers operating in the THz range is investigated and we propose to synthesize them by realizing resins with controlled percentage of metals. The resin conductivities are assumed to be obeying the Drude model for electron gas where the number of electron per unit of volume is finely tuned. Specifically the Drude model predicts the existence of two frequencies of interest, one associated to the scattering time of the electrons, and a second associated to the plasma frequency, this second largely dependent on the number of electrons We then move on to minimize the dimensions of the absorbers, by choosing the percentage of metal composing the absorber so that the two characteristic frequencies from the Drude model are coincident. The present investigation provides new, simple and effective guidelines for the design of absorbers in the THz spectrum, based on metal.
Period19 Mar 2020
Event title14th European Conference on Antennas and Propagation, EuCAP 2020
Event typeConference
Conference number14
LocationCopenhagen, Denmark
Degree of RecognitionInternational