From Event: SPIE Optical Engineering + Applications, 2018
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.
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 (Presented at SPIE Optical Engineering + Applications: August 20, 2018; Published: 14 September 2018); https://doi.org/10.1117/12.2320718.
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