2nd International School and Conference Saint-Petersburg OPEN on Optoelectronics, Photonics, Engineering and Nanostructures | |
Local field effects and metamaterials based on colloidal quantum dots | |
Porvatkina, O.V.^1 ; Tishchenko, A.A.^1 ; Strikhanov, M.N.^1 | |
National Research Nuclear University MEPhI, Moscow, Russia^1 | |
关键词: Colloidal quantum dots; Dielectric polarizabilities; Local-field effects; Negative refractive index; Polarizabilities; | |
Others : https://iopscience.iop.org/article/10.1088/1742-6596/643/1/012074/pdf DOI : 10.1088/1742-6596/643/1/012074 |
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来源: IOP | |
【 摘 要 】
Metamaterials are composite structures that exhibit interesting and unusual properties, e.g. negative refractive index. In this article we consider metamaterials based on colloidal quantum dots (CQDs). We investigate these structures taking into account the local field effects and theoretically analyze expressions for permittivity and permeability of metamaterials based on CdSe CQDs. We obtain inequality describing the conditions when material with definite concentration of CQDs is metamaterial. Also we investigate how the values of dielectric polarizability and magnetic polarizability of CQDs depend on the dots radius and properties the material the quantum dots are made of.
【 预 览 】
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