Temat: 41.20.Jb - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Imperfect Cloaking Devices Based on Metamaterials
Autorzy:: Isić, G.
Gajić, R.
Novaković, B.
Popović, Z. V.
Hingerl, K.
Powiązania:: https://bibliotekanauki.pl/articles/2047887.pdf
Data publikacji:: 2007-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 41.20.Jb
42.25.Fx
78.20.Ci
Opis:: Cloaking devices designed using the coordinate transform approach were shown to be realizable, at least in principle, within the realm of electromagnetic metamaterials. In this paper we investigate the strictness of conditions imposed on the parameters of metamaterial cloaks by calculating the degree of wave scattering when those parameters have variations with respect to theoretically ideal values. A simple idea is used to obtain analytic results for the case of the nonideal two-dimensional cloaking cylinder. Also, results of realistic finite element simulations of the Helmholtz equation are presented and it is found that they are in excellent agreement with the analytic results.
Źródło:: Acta Physica Polonica A; 2007, 112, 5; 1083-1088
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Confined Metamaterial Structures Based on Coordinate Transformations
Autorzy:: Vasić, B.
Gajić, R.
Isić, G.
Hingerl, K.
Powiązania:: https://bibliotekanauki.pl/articles/1807844.pdf
Data publikacji:: 2009-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 03.50.De
41.20.Jb
42.70.-a
Opis:: We apply transformation optics to structures in which the electromagnetic field is confined by highly conducting coatings. The possibility of changing the field propagation direction without perturbation is demonstrated on the example of a waveguide bend. Using this approach it is also possible to reshape a confined structure in order to meet certain external requirements and to redistribute a field in order to obtain desired field distribution. The structure implementation implies replacing a part of given confined structure with a metamaterial designed using the technique of transformation optics. Simplification of structure realization based on using reduced set of material parameters is examined. Our theoretical considerations are confirmed by full wave finite element simulations of a waveguide bend.
Źródło:: Acta Physica Polonica A; 2009, 116, 1; 96-98
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Optical Properties of the (3,12,12) Hexagonal Archimedean Photonic Crystal
Autorzy:: Jovanović, Ð.
Gajić, R.
Hingerl, K.
Powiązania:: https://bibliotekanauki.pl/articles/1795628.pdf
Data publikacji:: 2009-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.70.Qs
61.50.Ah
41.20.Jb
42.25.Bs
42.25.Gy
Opis:: We present a theoretical research of the optical properties of the (3,12,12) hexagonal 2D Archimedean photonic crystals. The structures are made of GaAs dielectric rods in air. Our research is mainly focused on analyzing symmetry properties of the modes and the appearance of the uncoupled modes which strongly affects the propagation of the wave and the optical performances of the material.
Źródło:: Acta Physica Polonica A; 2009, 116, 4; 642-644
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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