Numerical optimization of metallized titania nanotube morphologies for negative index material flat lens applications
We perform numerical calculation in order to optimize the morphology of metallized ti- tania nanotubes from the point of view of flat lens application based on NIM. An efficient multiple-scattering approach is used to calculate propagation of electromagnetic waves through the materials designed. T...
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| Autores principales: | , , , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
D.Ghitu Institute of Electronic Engineering and Nanotechnologies
2010
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/939ada0762954c64b8cbdf66741a505d |
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| Sumario: | We perform numerical calculation in order to optimize the morphology of metallized ti-
tania nanotubes from the point of view of flat lens application based on NIM. An efficient multiple-scattering approach is used to calculate propagation of electromagnetic waves through the
materials designed. The focusing properties of a flat lens constructed from a superlattice structure of nanotube clusters were found to be better as compared to a lens with a regular arrangement of nanotubes. A disorder of 20% introduced in the position of nanotubes of the optimized
superlattice does not significantly influence the focusing properties of the lens. |
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