Material-Dependencies of the THz Emission from Plasmonic Graphene-Based Photoconductive Antenna Structures
Abstract
Graphene supports surface plasmon polaritons with comparatively slow propagation velocities in the THz region, which becomes increasingly interesting for future communication technologies. This ability can be used to realize compact antennas, which are up to two orders of magnitude smaller than their metallic counterparts. For a proper functionality of these antennas some minimum material requirements have to be fulfilled, which are presently difficult to achieve, since the fabrication and transfer technologies for graphene are still evolving. In this work we analyze available graphene materials experimentally and extract intrinsic characteristics at THz frequencies, in order to predict the dependency of the THz signal emission threshold as a function of the graphene relaxation time tau_r and the chemical potential mu_c.
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Cite
@article{arxiv.2104.05473,
title = {Material-Dependencies of the THz Emission from Plasmonic Graphene-Based Photoconductive Antenna Structures},
author = {Christoph Suessmeier and Sergi Abadal and Daniel Stock and Stephan Schaeffer and Eduard Alarcón and Seyed Ehsan Hosseininejad and Anna Katharina Wigger and Stefan Wagner and Albert Cabellos-Aparicio and Max C. Lemme and Peter Haring Bolívar},
journal= {arXiv preprint arXiv:2104.05473},
year = {2021}
}
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2 pages, 1 table