Permittivity and permeability of semi-infinite metamaterial

5th International Symposium on Coherent Optical Radiation of Semiconductor Compounds and Structures

Porvatkina, O.V.^1 ; Tishchenko, A.A.^1 ; Strikhanov, M.N.^1

National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, 31 Kashirskoye shosse, Moscow

115409, Russia^1

关键词: Clausius-Mossotti relation;    Dielectric and magnetic properties;    Dielectric polarizabilities;    Local-field effects;    Long-wave approximation;    Multi-scale approaches;    Near-surface layers;    Non-magnetic materials;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/740/1/012011/pdf
DOI  :  10.1088/1742-6596/740/1/012011

来源: IOP

【 摘 要 】

In our work we investigate dielectric and magnetic properties of semi-infinite metamaterial consisting of particles of different possible nature: atoms, molecules, nanoparticles, etc. It is important that these particles would have magnetic properties. Polarization of a near-surface layer is known to differ from its bulk value for non-magnetic materials; for magnetic materials, including metamaterials, the situation should be similar, which is the subject of our research. We obtain analogues of the Clausius-Mossotti relation both for permittivity and permeability taking into account the local field effects in the longwave approximation for semi-infinite metamaterial. These relations describe the connection between macroscopic characteristics of the semi-infinite metamaterial (permittivity and permeability) and characteristics of constituent particles (dielectric polarizability and magnetic polarizability), which is a bright example of multi-scale approach - method very popular today in physical and computer simulating.