AI Article Synopsis
- The paper formulates the Dyadic Green's function for a monolayer cylinder with a fully-populated surface conductivity tensor, focusing on its application to graphene structures.
- It examines two specific cases: densely packed graphene strips akin to a hyperbolic meta-surface and arbitrary-shaped graphene designs that support magneto-plasmons.
- The approach utilizes effective medium theory (EMT) for the first case, while the second case employs the finite element method (FEM) to extract effective tensor surface conductivity, with validation through numerical examples.
Article Abstract
Dyadic Green's function for a monolayer cylinder consisting of a cover with fully-populated surface conductivity tensor is formulated in this paper. Cylindrically wrapped densely packed graphene strips behaving as a hyperbolic meta-surface and arbitrary shaped graphene patterns supporting magneto-plasmons are investigated as two special cases. Closed-form approximate formulas based on effective medium theory (EMT) are available for the surface conductivity of the former and the latter can be analyzed by the effective tensor surface conductivity extraction by means of the finite element method (FEM). Both cases are treated under locally flat consideration of the conformal structures. Our formulation is based on the scattering superposition method by imposing the discontinuity boundary condition on tangential magnetic fields. Numerical examples are demonstrated to further validate the method for both guided and radiated modes.
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| http://dx.doi.org/10.1364/OE.27.021214 | DOI Listing |
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