Interface, Guided and Non-Localized Modes in Superlattices

• Authors: R. Brazis , R. Narkowicz , L. Safonova
• Languages of publication: EN

Abstracts

EN

The numerical dispersion calculations in long-period GaAs/AlAs super-lattice were performed using a local theory with retardation as well as an ef­fective medium approximation. The splitting of the dispersion branches near the transverse optical phonon frequencies and phonon-like to photon-like modes transition were found to depend on the superlattice spatial period. The characteristic frequencies of bulk modes and crossing point of disper­sion branches estimated analytically with the use of an effective medium approximation were found to agree with the results of rigorous solution.

Keywords

EN

78.66.-w

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)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1995
• Volume: 87
• Issue: 2
• Pages: 333-336

Dates

published

1995-02

Contributors

author

R. Brazis

• Semiconductor Physics Institute, Gostauto 11, 2600 Vilnius, Lithuania
• Polish University at the Association of Polish Scientists of Lithuania, P.O. Box 823, 2055 Vilnius, Lithuania

author

R. Narkowicz

• Semiconductor Physics Institute, Gostauto 11, 2600 Vilnius, Lithuania
• Polish University at the Association of Polish Scientists of Lithuania, P.O. Box 823, 2055 Vilnius, Lithuania

author

L. Safonova

• Semiconductor Physics Institute, Gostauto 11, 2600 Vilnius, Lithuania

Identifiers

DOI

10.12693/APhysPolA.87.333