Modeling of plasmonic semiconductor THz antennas in square and hexagonal array arrangements

Soenke Gruessing; Bernd Witzigmann; Friedhard Roemer; Giovanni Capellini; Carlos Alvarado; Wolfgang M. Klesse; Elena Hardt; Jacob Piehler; Changjiang You; Julia Flesch

doi:10.1117/12.2543553

2 March 2020 Modeling of plasmonic semiconductor THz antennas in square and hexagonal array arrangements

Soenke Gruessing, Bernd Witzigmann, Friedhard Roemer, Giovanni Capellini, Carlos Alvarado, Wolfgang M. Klesse, Elena Hardt, Jacob Piehler, Changjiang You, Julia Flesch

Author Affiliations +

Proceedings Volume 11279, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XIII; 1127926 (2020) https://doi.org/10.1117/12.2543553
Event: SPIE OPTO, 2020, San Francisco, California, United States

Abstract

Here, we present 3D solutions of Maxwell’s equations using the finite element method (FEM) for sub-wavelength plasmonic THz antennas in array configurations. We show that mutual coupling between neighboring antennas causes the arrays spectral response to change with different array densities and arrangements. The simulation results of the spectral response of the antennas are in very good agreement to the experiments. Finally, in order to investigate the sensing performance of the antennas, simulations with different feed gap materials were carried out.

Citation Download Citation

Soenke Gruessing, Bernd Witzigmann, Friedhard Roemer, Giovanni Capellini, Carlos Alvarado, Wolfgang M. Klesse, Elena Hardt, Jacob Piehler, Changjiang You, and Julia Flesch "Modeling of plasmonic semiconductor THz antennas in square and hexagonal array arrangements", Proc. SPIE 11279, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XIII, 1127926 (2 March 2020); https://doi.org/10.1117/12.2543553

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