Dielectric Permeability of Nanocylinder

• Authors: S. Jaćimovski , V. Sajfert , D. Raković , B. Tošić
• Languages of publication: EN

Abstracts

EN

In the nanocylinder, a cut-off from the molecular crystal, dielectric permeability tensor is investigated. Excitons in the nanocylinder arise due to the exciting of the electron subsystem of the molecule. In evaluation of dielectric permeability Dzhyaloshinskii-Pitaevskii approach is used, connected with retarded and advanced exciton Green's functions and correct use of Paulion Green's function. It turned out that refraction and absorption indices depend on configuration coordinates, having maximal values at boundary cross-sections and minimal value at central cross-section of the nanocylinder broken symmetry structure. Although it was expected that boundary conditions make higher refractive and absorptive characteristics of the nanocylinder, this appeared not to be possible because Paulion Green's function is not proportional to the exciton concentration.

Keywords

EN

78.20.Ci   78.40.Me  

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 117
• Issue: 5
• Pages: 738-744

Dates

published

2010-05

References

• 1. I.E. Dzyalosinskii, L.P. Piatevskii, ZhETF 36, 1977 (1959)
• 2. V.M. Agranovich, Theory of Excitons, 352-356, Nauka, Moscow 1978
• 3. D.I. Lalović, B.S. Tošić, R.B. Žakula, Phys. Rev. 178, 1472 (1969)
• 4. V.M. Agranovich, B.S. Tošić, ZhETPh 53, 149 (1967)
• 5. S.V. Tyablikov, Methods of Quantum Theory in Magnetism, 232-236 Nauka, Moscow 1975
• 6. M. Laroche, Phys. Rev. B 74, 245422 (2006)
• 7. M. Knupfer, T. Schwieger, J. Fink, K. Leo, M. Hoffman, Phys. Rev. B 66, 035208 (2002)
• 8. I. Vragović, R. Scholz, M. Schreiber, Europhys. Lett. 57, 288 (2002)
• 9. S.E. Sburlan, Phys. Rev. B 73, 035403 (2006)
• 10. B. Tošić, V. Sajfert, D. Popov, J. Šetrajčić, D. Ćirić, Application of Difference Calculation in Analyses of Nanostructures, VANU, 131-156 Novi Sad 2005
• 11. V.M. Agranovich, Y.R. Shen, R.H. Baughman, A.A. Zakhidov, Phys. Rev. B 69, 165112 (2004)
• 12. U. Kozmidis-Luburić, B. Tošić, Optical Excitations in Material Media, University of Novi Sad, 64-76 Novi Sad 2000

Identifiers

DOI

10.12693/APhysPolA.117.738