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Proceedings Paper

Realistic electric field modeling of multilayered nanostructures by classic electrodynamics and first principles theory
Author(s): L. G. Il'chenko; V. V. Il'chenko; A. V. Gavrilenko; V. I Gavrilenko
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Paper Abstract

Efficient engineering of metamaterials involves modeling of electric field profiles around these structures. Realistic modeling of the electric field in metamaterials requires accurate knowledge of optical constants of the compo- nents for which traditionally the bulk values are taken. Further progress in the developing of metamaterials is characterized by a reduction of the pattern size, dimensions of single layers in multilayered structures etc. It has been understood that optical functions in low-dimensional and nano-sized materials substantially differ from their bulk values increasingly affecting by quantum processes. In this work we develop a complex method for analytical modeling of electric field profiles in metamaterials including quantum processes in nano-sized multi-layered structures. In particular based on first principles density functional theory we obtained simple analytical functions allowing predictions the optical functions variations with the size reduction of single metamaterial components over a wide spectral region. It is shown that optical functions of nano-sized films substantially (by 50 percent and more) differ from those in bulk. The new calculated optical functions of the components are used for electric field profile modeling of nano-sized multilayered structures by nonlocal Green function technique including effects of spatial dispersion. Silicon, silicon dioxide, and water layers are used as an example. The method effectively incorporates real atomic structure reconstruction on surfaces and inner interfaces thus providing with a more realistic picture for modeling. By comparison with experiment it is demonstrated that our method predicts image potential of the nanostructures in better agreement with experiment than if using traditional classic electrodynamics approach neglecting the quantum effects. The results are discussed in comparison with literature.

Paper Details

Date Published: 11 September 2013
PDF: 13 pages
Proc. SPIE 8806, Metamaterials: Fundamentals and Applications VI, 88062P (11 September 2013); doi: 10.1117/12.2025122
Show Author Affiliations
L. G. Il'chenko, National Univ. of Kyiv (Ukraine)
V. V. Il'chenko, National Univ. of Kyiv (Ukraine)
A. V. Gavrilenko, Norfolk State Univ. (United States)
V. I Gavrilenko, Norfolk State Univ. (United States)

Published in SPIE Proceedings Vol. 8806:
Metamaterials: Fundamentals and Applications VI
Allan D. Boardman; Nader Engheta; Mikhail A. Noginov; Nikolay I. Zheludev, Editor(s)

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