11 April 2018 Modeling of graphene-based suspended nanostrip waveguide for terahertz integrated circuit applications
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J. of Nanophotonics, 12(2), 026004 (2018). doi:10.1117/1.JNP.12.026004
Abstract
Design and analysis of a graphene-based suspended nanostrip line for integrated circuit applications at terahertz (THz) frequencies are presented. A suspended nanostrip waveguide structure has been analyzed using a full wave electromagnetic (EM) simulator to obtain its transmission line characteristics, such as propagation constant and characteristic impedance. Closed form expressions have been developed for the same. Later, graphene-based plasmonic resonators have been analyzed. Coupled resonators have been used to implement a filter-based diplexer. A split ring resonator has been used to design a sensor for measuring refractive index variation. The transmission spectra of the designed graphene-based SRR have been discussed in detail with the help of full-wave EM simulation tools, providing a vivid vision of the sensing potential of the proposed sensor structure. The simulation results depict two surface plasmon resonance peaks in the transmission spectrum, showing a linear relationship with the dielectric constant of the material under sensing. The tuning capability of the graphene tunable sensor allows its usage in the field of nanodevices and sensor applications.
© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE)
Neetu Joshi, Nagendra P. Pathak, "Modeling of graphene-based suspended nanostrip waveguide for terahertz integrated circuit applications," Journal of Nanophotonics 12(2), 026004 (11 April 2018). https://doi.org/10.1117/1.JNP.12.026004 Submission: Received 24 September 2017; Accepted 20 March 2018
Submission: Received 24 September 2017; Accepted 20 March 2018
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