Wszystkie pola: Tarkowski, J. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Surface Metallic Pattern for Enhancement of a THz Field in a Two-Dimensional Electron Plasma
Autorzy:: Tarkowski, T.
Łusakowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/1033104.pdf
Data publikacji:: 2017-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: Metamaterials
THz field enhancement
Opis:: A metamaterial in the form of a periodic lattice of split-ring resonators on a GaAs/AlGaAs heterostructure was numerically studied at terahertz frequencies. A finite-difference time-domain algorithm was applied to calculate distribution of the electromagnetic field in the layer positioned at 100 nm below the heterostructure surface where a two-dimensional electron gas typically resides in real structures. The results allowed to determine the resonant frequencies of the metamaterial as well as an enhancement factor of the electric field as a function of the period of the metamaterial's lattice.
Źródło:: Acta Physica Polonica A; 2017, 132, 2; 332-334
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Structure and Energetics of Fragments of the Planar α and β Boron Sheets
Autorzy:: Gonzalez Szwacki, N.
Tarkowski, T.
Majewski, J.
Powiązania:: https://bibliotekanauki.pl/articles/1398547.pdf
Data publikacji:: 2016-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.46.-w
68.65.-k
73.22.-f
Opis:: Large scale first principles calculations based on density functional theory and using hybrid exchange-correlation functionals have been performed in order to study the structural properties and the relative stability of fragments of the planar α and β boron sheets. Based on the considered structures, we show that, in contrast to the fragments of the α -sheet, all the fragments of the β -sheet, having more than ≈30 atoms, are fully planar regardless of their shape. We conclude that the β -sheet is the only planar boron sheet reported so far that retains planarity even if it is reduced to relatively small fragments.
Źródło:: Acta Physica Polonica A; 2016, 129, 1a; A-148-A-149
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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