Metawire

Despite the fact that metamaterials consist of the microscopic (or even nanoscopic) elements which characteristics define the “meta”-properties, the problem of multiscale and accurate theoretical description is rather... [ view full abstract ]

Despite the fact that metamaterials consist of the microscopic (or even nanoscopic) elements which characteristics define the “meta”-properties, the problem of multiscale and accurate theoretical description is rather complicated. Here we construct the theory describing macroscopic properties of a wire consisting of a chain of micro-particles (molecules, nanoparticles, quantum dots, etc). Using the local field theory approach, we managed to describe the macroscopic properties given by the analogues of permittivity and permeability for the wire through the microscopic properties of its constituent objects: electric and magnetic polarizabilities, and interspacing. Moreover, the expressions obtained for the chain of particles are analogues of the well-known Clausius-Mossotti expression. This chain is considered as a meta-object: we discuss the conditions for microscopic parameters, when permittivity and permeability become negative, as it occurs in double-negative metamaterials.

The work was supported by the Competitiveness Programme of National Research Nuclear University “MEPhI” and partially by the Ministry of Science and Education of the Russian Federation, grant № 3.2621.2017/4.6.

References

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