Optimization of the terahertz metamaterial modulator using Fabry-Perot resonances and higher-order plasmonic modes

D. Seliuta; G. Šlekas; Ž. Kancleris; G. Valušis

doi:10.1117/12.2320718

14 September 2018 Optimization of the terahertz metamaterial modulator using Fabry-Perot resonances and higher-order plasmonic modes

D. Seliuta, G. Šlekas, Ž. Kancleris, G. Valušis

Author Affiliations +

Proceedings Volume 10756, Terahertz Emitters, Receivers, and Applications IX; 107560R (2018) https://doi.org/10.1117/12.2320718
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

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.

Conference Presentation

Citation Download Citation

D. Seliuta, G. Šlekas, Ž. Kancleris, and G. Valušis "Optimization of the terahertz metamaterial modulator using Fabry-Perot resonances and higher-order plasmonic modes", Proc. SPIE 10756, Terahertz Emitters, Receivers, and Applications IX, 107560R (14 September 2018); https://doi.org/10.1117/12.2320718

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