Optical invisibility of cylindrical structures and homogeneity effect on scattering cancellation method
| Autor: | Mohammad Danaeifar, Nosrat Granpayeh, M.R. Booket |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Invisibility Scattering Filling factor business.industry Physics::Optics Cloaking Dielectric STRIPS Theories of cloaking Physics::Classical Physics 01 natural sciences law.invention 010309 optics Physics::Popular Physics Optics law 0103 physical sciences Homogeneity (physics) Physics::Atomic and Molecular Clusters Electrical and Electronic Engineering 010306 general physics business |
| Zdroj: | Electronics Letters. 52:29-31 |
| ISSN: | 1350-911X 0013-5194 |
| DOI: | 10.1049/el.2015.2604 |
| Popis: | Optical cloaking for cylindrical structures with arbitrary cross-section by using scattering cancellation method is presented. Nano-strips of silver in a dielectric host are used as a cloaking shell around the cylindrical object with arbitrary cross-section shapes. In this approach, the homogeneity effect on cloaking efficiency in the cloaking structure with circle cross-section is studied. The number of silver strips is the criteria of shell homogeneity. By increasing the number of strips for a constant filling factor, their widths become narrower and so the cloaking shell becomes more homogenous. It is shown that the cloaking efficiency is affected by the homogeneity of the cloaking shell and there is an optimum size of embedded particles to achieve required homogeneity in a cloaking structure. |
| Databáze: | OpenAIRE |
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