- Tytuł:
- Changes in Optical Properties of Molecular Nanostructures
- Autorzy:
-
Vučenović, S.
Šetrajčić, J.
Markoski, B.
Mirjanić, D.
Pelemiš, S.
Škipina, B. - Powiązania:
- https://bibliotekanauki.pl/articles/1537873.pdf
- Data publikacji:
- 2010-05
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
77.55.+f
78.20.-e
78.66.-w
78.67.-n - Opis:
- This paper represents an overview about exciton systems in the molecular nanostructures (ultra thin films and superlattices) and their implications on optical properties, primarily on absorption coefficient, which is given in the form of dielectric permittivity. With utilization of Green's function method, we have calculated dispersion law, spectral weight of exciton states and dielectric permittivity for every type of nanostructures. All obtained results are compared with optical properties in bulk crystals. Dielectric permittivity in all types of nanostructures shows very narrow and discrete dependence of external electromagnetic field frequency, which is a consequence of the expressed quantum effects, very thin thickness in these structures (or at least one dimension confinement) and boundary conditions.
- Źródło:
-
Acta Physica Polonica A; 2010, 117, 5; 764-767
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł