Changes in Optical Properties of Molecular Nanostructures

• Authors: S. Vučenović , J. Šetrajčić , B. Markoski , D. Mirjanić , S. Pelemiš , B. Škipina
• Languages of publication: EN

Abstracts

EN

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.

Keywords

EN

77.55.+f; 78.20.-e; 78.66.-w; 78.67.-n

Discipline

• 78.66.-w: Optical properties of specific thin films(for optical properties of low-dimensional, mesoscopic, and nanoscale materials, see 78.67.-n; for optical properties of surfaces, see 78.68.+m)
• 78.20.-e: Optical properties of bulk materials and thin films(for optical properties related to materials treatment, see 81.40.Tv; for optical materials, see 42.70-a; for optical properties of superconductors, see 74.25.Gz; for optical properties of rocks and minerals, see 91.60.Mk; for optical properties of specific thin films, see 78.66.-w)
• 78.67.-n: Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures(for magnetic properties of nanostructures, see 75.75.-c; for electronic transport in nanoscale structures, see 73.63.-b; for mechanical properties of nanoscale systems, see 62.25.-g)

• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 117
• Issue: 5
• Pages: 764-767

Dates

published

2010-05

Contributors

author

S. Vučenović

• Faculty of Medicine, University of Banja Luka, Banja Luka, Republic Srpska - BiH

author

J. Šetrajčić

• Department of Physics, Faculty of Sciences, University of Novi Sad, Novi Sad, Vojvodina - Serbia

author

B. Markoski

• Technical Faculty "M. Pupin" Zrenjanin, University of Novi Sad, Novi Sad, Vojvodina - Serbia

author

D. Mirjanić

• Faculty of Medicine, University of Banja Luka, Banja Luka, Republic Srpska - BiH

author

S. Pelemiš

• Faculty of Technology, University of East Sarajevo, Zvornik, Zvornik, Republic Srpska, BiH

author

B. Škipina

• Faculty of Technology, University of Banja Luka, Banja Luka, Republic Srpska, BiH

References

• 1. V.M. Agranovich, V.L. Ginzburg, Crystaloptics with Space Dispersion - Theory of Excitons, Nauka, Moskwa 1979
• 2. A.A. Maradudin in: Nanostructure Science and Technology, Ed. D.J. Lockwood, Springer, New York 2007
• 3. S.M. Vučenović, D.I. Ilić, J.P. Šetrajčić, V.D. Sajfert, D.Lj. Mirjanić, Proceedings Materials Research Society Spring'07 Conference, Symposium DD: Low-Dimensional Materials - Synthesis, Assembly, Property Scaling, and Modeling 1 2007 p. D8-29
• 4. G. Rickayzen, Green's Function and Condensed Matter, Academic Press, London 1980
• 5. J.P. Šetrajčić, D.I. Ilić, B. Markoski, A.J. Šetrajčić, S.M. Vučenović, D.Lj. Mirjanić, B. Škipina, S. Pelemiš, in: 15th Central European Workshop on Quantum Optics, Belgrade 2008
• 6. T.J. Rivlin, Chebyshev Polynomials, Wiley, New York 1990
• 7. S.G. Davison, M. Steslicka, Basic Theory of Surface States, Oxford, Clarendon 1996
• 8. S.M. Vučenović, J.P. Šetrajčić, D.Lj. Mirjanić, B. Škipina, Acta Phys. Pol. A 112, 963 (2007)
• 9. I.E. Dzyaloshinski, L.P. Pitaevski, Zh. Eksp. Teor. Fiz. 36, 1797 (1959)
• 10. M. Combescot, W. Pogosov, Phys. Rev. B 77, 085206 (2008)
• 11. C. Hippius, I.H.M. van Stokkum, M. Gsa1nger, M.M. Groeneveld, R.M. Williams, F. Würthner, J. Phys. Chem. C 112, 2476 (2008)
• 12. R. Schuster, M. Knupher, H. Berger, Phys. Rev. Lett. 98, 037402 (2007)

Identifiers

DOI

10.12693/APhysPolA.117.764