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Optimization of the terahertz metamaterial modulator using Fabry-Perot resonances and higher-order plasmonic modes
Author(s): D. Seliuta; G. Šlekas; Ž. Kancleris; G. Valušis
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Paper Abstract

Terahertz modulators based on frequency-tunable metamaterials are designed, produced and investigated. It is shown that optimization of the substrate thickness allows to increase the modulation depth and reduce the insertion loss of the modulator. Enhancement mechanism of higher-order resonant modes in densely packed resonator arrays is suggested. It is demonstrated that the resonant frequency of the fifth order plasmonic mode can be effectively tuned which makes the device attractive for practical applications.

Paper Details

Date Published: 14 September 2018
PDF: 6 pages
Proc. SPIE 10756, Terahertz Emitters, Receivers, and Applications IX, 107560R (14 September 2018); doi: 10.1117/12.2320718
Show Author Affiliations
D. Seliuta, Ctr. for Physical Sciences and Technology (Lithuania)
Vilnius Gediminas Technical Univ. (Lithuania)
G. Šlekas, Ctr. for Physical Sciences and Technology (Lithuania)
Vilnius Gediminas Technical Univ. (Lithuania)
Ž. Kancleris, Ctr. for Physical Sciences and Technology (Lithuania)
G. Valušis, Ctr. for Physical Sciences and Technology (Lithuania)


Published in SPIE Proceedings Vol. 10756:
Terahertz Emitters, Receivers, and Applications IX
Manijeh Razeghi; Alexei N. Baranov, Editor(s)

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