Numerical optimization of metallized titania nanotube morphologies for negative index material flat lens applications

Sergentu Vladimir; Zalamai Victor; Enachi Mihail; Ursachi Veaceslav; Tiginyanu Ion

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2020-09-16 20:07

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SERGENTU, Vladimir, ZALAMAI, Victor, ENACHI, Mihail, URSACHI, Veaceslav, TIGINYANU, Ion. Numerical optimization of metallized titania nanotube morphologies for negative index material flat lens applications. In: Moldavian Journal of the Physical Sciences, 2010, nr. 3-4(9), pp. 333-338. ISSN 1810-648X.

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Moldavian Journal of the Physical Sciences

Numărul 3-4(9) / 2010 / ISSN 1810-648X /ISSNe 2537-6365

Numerical optimization of metallized titania nanotube morphologies for negative index material flat lens applications

Pag. 333-338

Sergentu Vladimir¹, Zalamai Victor¹, Enachi Mihail², Ursachi Veaceslav¹, Tiginyanu Ion³

¹ Institute of Applied Physics, Academy of Sciences of Moldova,
² Technical University of Moldova,
³ Institute of the Electronic Engineering and Nanotechnologies "D. Ghitu" of the Academy of Sciences of Moldova

Disponibil în IBN: 3 decembrie 2013

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Rezumat

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.