Distributed Excitations of Pulsed Photo-Conductive Sources

The Time Domain Analysis

Master thesis (2023)

Authors

L.F.E. Beijnen Electrical Engineering, Mathematics and Computer Science

Contributors

A. Neto Tera-Hertz Sensing - EEMCS (supervisor 1)
Nuria Llombart Tera-Hertz Sensing - EEMCS (supervisor 2)
A.J.L. Adam ImPhys/Adam group - AS (coach)
Faculty
Electrical Engineering, Mathematics and Computer Science
Copyright: © 2023 Laurens Beijnen
THz source THz technology THz antenna Slot Antenna THz photoconductive antenna THz radiated power Leaky Waves Distributed Sources
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Published Date

10-11-2023

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Abstract

Distributed feeding in photo-conducting antennas (PCAs) leads to simple optical designs, less prone to overheating, as well to terahertz (THz) antennas that can operate non-dispersively over wide bandwidths. However, the efficient analysis of pulsed PCAs was so far limited to architectures characterized by feeds small with respect to the THz wavelengths. In this thesis, an efficient and rigorous procedure for the time domain analysis of an infinitely long slot antenna printed on photo conductive material and excited by a distributed pulsed laser is presented. The procedure is electromagnetically rigorous, and relies on spectral representations of the fields in both the frequency and spatial domains.