Enhancing Sensor Sensitivity Using Graphene-MTM Interface
R. J. El-Khozondar,
H. J. El-Khozondar,
M. M. Shabat
Issue:
Volume 4, Issue 5, September 2016
Pages:
43-46
Received:
11 August 2016
Accepted:
12 November 2016
Published:
17 January 2017
DOI:
10.11648/j.nano.20160405.11
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Abstract: Sensitivity of a waveguide sensor consists of Graphene monolayer between metamaterials (MTMs) layer from below and dielectric layer from above is studied. In this work, we only considered Transverse Magnetic (TM) surface plasmon (SP) at terahertz (THz) range of frequency. Thus, Graphene is assumed to have constant surface conductivity with positive imaginary part. The homogenous sensitivity is derived from the dispersion equation and numerically calculated at different values of MTM parameter. Results show that this structure is valid as a very sensitive sensor that is capable of sensing small signals. Moreover, the sensitivity varies as MTM parameters varies at frequency ranges from 1-10 THz.
Abstract: Sensitivity of a waveguide sensor consists of Graphene monolayer between metamaterials (MTMs) layer from below and dielectric layer from above is studied. In this work, we only considered Transverse Magnetic (TM) surface plasmon (SP) at terahertz (THz) range of frequency. Thus, Graphene is assumed to have constant surface conductivity with positive...
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